/* ==========================================================
   功能中心 · 页面专属样式（作用域 .page-products）
   ========================================================== */

.page-products {
  --fc-gap: 12px;
  --fc-pad: 20px;
  display: block;
  padding: 20px 0 80px;
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 面包屑与首屏 ---------- */

.page-products .crumbs {
  margin-bottom: 18px;
  font-size: 12px;
}

.page-products .fc-hero {
  padding: 8px 0 24px;
  border-bottom: 1px solid var(--line);
}

.page-products .fc-hero__title {
  margin: 12px 0 16px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .fc-hero__lead {
  max-width: 60ch;
  margin: 0 0 22px;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .fc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--muted);
}

.page-products .fc-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.page-products .fc-hero__meta .mono {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .fc-hero__meta strong {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

/* ---------- 章节索引条 ---------- */

.page-products .fc-index {
  display: flex;
  overflow-x: auto;
  margin-top: 4px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-products .fc-index .index-nav__link {
  flex: 0 0 auto;
  padding: 13px 15px 12px;
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: color var(--fast) ease, border-color var(--fast) ease;
}

.page-products .fc-index .index-nav__link:hover,
.page-products .fc-index .index-nav__link:focus-visible {
  color: var(--ink);
}

.page-products .fc-index .index-nav__link[aria-current] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 章节通用 ---------- */

.page-products .section {
  padding-top: 52px;
}

.page-products .section-head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.28;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-products .section-head p {
  max-width: 66ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 模块总览 Bento ---------- */

.page-products .fc-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--fc-gap);
  margin-top: 26px;
}

.page-products .fc-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--fc-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color var(--fast) ease, transform var(--fast) ease, background var(--fast) ease;
}

.page-products .fc-tile:hover {
  border-color: var(--cyan);
  transform: translateY(-1px);
  background: var(--panel-2);
}

.page-products .fc-tile--lead {
  background: linear-gradient(155deg, var(--panel-2) 0%, var(--panel) 62%);
  border-left: 2px solid var(--cyan);
}

.page-products .fc-tile__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .fc-tile__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
}

.page-products .fc-tile__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .fc-tile .btn {
  align-self: flex-start;
  margin-top: auto;
}

.page-products .fc-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  padding: 14px 0 4px;
  border-top: 1px dashed var(--line);
}

.page-products .fc-stat-row .stat {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-products .fc-stat-row .stat__num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-products .fc-stat-row .stat__unit {
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 图片容器 ---------- */

.page-products .fc-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-products .fc-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .fc-figure .media__label {
  display: block;
  padding: 9px 12px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--bg);
}

/* ---------- 交锋库字段网格 ---------- */

.page-products .fc-fieldgrid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 26px;
  border-top: 1px solid var(--line);
}

.page-products .fc-fieldcard {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .fc-fieldcard__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
}

.page-products .fc-fieldcard h3 {
  margin: 0 0 8px;
  font-family: var(--font-narrow);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-fieldcard p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 阵容对比：左轨右栏 ---------- */

.page-products .fc-split {
  margin-top: 26px;
}

.page-products .fc-railzone {
  min-width: 0;
}

.page-products .fc-rail {
  display: flex;
  gap: var(--fc-gap);
  overflow-x: auto;
  padding-bottom: 14px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-products .fc-rail::-webkit-scrollbar {
  height: 4px;
}

.page-products .fc-rail::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-products .fc-card {
  flex: 0 0 82%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: linear-gradient(180deg, var(--panel-2) 0%, var(--panel) 100%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-products .fc-card__no {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .fc-card__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-card > p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .fc-card__list {
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 13.5px;
  color: var(--ink);
}

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

.page-products .fc-card__list .mono {
  flex: 0 0 auto;
  min-width: 66px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-products .fc-rail-hint {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  animation: fc-nudge 2.6s ease-in-out infinite;
}

@keyframes fc-nudge {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

.page-products .fc-aside {
  margin-top: 24px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-products .fc-aside__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  font-family: var(--font-narrow);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-products .fc-fields {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.page-products .fc-field {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 10px;
  align-items: baseline;
}

.page-products .fc-field dt {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .fc-field dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.page-products .fc-aside__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- 射手榜字段 ---------- */

.page-products .fc-metrics {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .fc-metric {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px;
  background: var(--bg);
}

.page-products .fc-metric__k {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .fc-metric__v {
  font-family: var(--font-narrow);
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-metric p {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .fc-scorers__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--amber);
}

/* ---------- 场馆网格与时间轴 ---------- */

.page-products .fc-venuegrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .fc-venuecard {
  padding: 20px;
  background: var(--panel);
}

.page-products .fc-venuecard__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-products .fc-venuecard h3 {
  margin: 0 0 8px;
  font-family: var(--font-narrow);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-venuecard p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .fc-timeline {
  margin: 26px 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-products .fc-timeline__item {
  position: relative;
  padding: 0 0 22px 16px;
}

.page-products .fc-timeline__item:last-child {
  padding-bottom: 0;
}

.page-products .fc-timeline__dot {
  position: absolute;
  left: -24px;
  top: 5px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(47, 240, 196, 0.14);
}

.page-products .fc-timeline__k {
  margin: 0 0 5px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .fc-timeline__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 上手流程 ---------- */

.page-products .fc-start__grid {
  margin-top: 26px;
}

.page-products .fc-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .fc-step {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .fc-step__no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-products .fc-step__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-narrow);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .fc-start__figure {
  margin: 24px 0 0;
  aspect-ratio: 5 / 6;
  border: 1px solid var(--line);
  background: var(--panel);
}

/* ---------- 延伸链接 ---------- */

.page-products .fc-next__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .fc-nextlink {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  background: var(--bg);
  text-decoration: none;
  transition: background var(--fast) ease;
}

.page-products .fc-nextlink:hover,
.page-products .fc-nextlink:focus-visible {
  background: var(--panel-2);
}

.page-products .fc-nextlink .mono {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .fc-nextlink strong {
  font-family: var(--font-narrow);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fc-nextlink em {
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ==========================================================
   响应式
   ========================================================== */

@media (min-width: 560px) {
  .page-products .fc-field {
    grid-template-columns: 100px 1fr;
  }

  .page-products .fc-card {
    flex-basis: 58%;
  }
}

@media (min-width: 720px) {
  .page-products {
    --fc-gap: 14px;
    --fc-pad: 22px;
  }

  .page-products .fc-bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .fc-tile--lead { grid-column: span 12; }
  .page-products .fc-tile--a,
  .page-products .fc-tile--b,
  .page-products .fc-tile--c,
  .page-products .fc-tile--d { grid-column: span 6; }

  .page-products .fc-fieldgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border-bottom: 1px solid var(--line);
  }

  .page-products .fc-fieldcard {
    padding: 22px;
    background: var(--bg);
    border-bottom: none;
  }

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

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

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

@media (min-width: 1024px) {
  .page-products .section {
    padding-top: 66px;
  }

  .page-products .fc-tile--lead { grid-column: span 6; }
  .page-products .fc-tile--a { grid-column: span 6; }
  .page-products .fc-tile--b,
  .page-products .fc-tile--c,
  .page-products .fc-tile--d { grid-column: span 4; }

  .page-products .fc-split {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-products .fc-aside {
    margin-top: 0;
    position: sticky;
    top: 96px;
  }

  .page-products .fc-card {
    flex-basis: 46%;
  }

  .page-products .fc-start__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-products .fc-start__figure {
    margin-top: 0;
  }

  .page-products .fc-metrics {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-products .fc-next__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1240px) {
  .page-products .fc-hero {
    padding-top: 16px;
  }

  .page-products .fc-figure {
    margin-top: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fc-tile,
  .page-products .fc-nextlink {
    transition: none;
  }

  .page-products .fc-tile:hover {
    transform: none;
  }

  .page-products .fc-rail-hint {
    animation: none;
    opacity: 1;
  }
}