/* ============ 页面专属：服务中心 ============ */
.page-products {
  --fold-gold-border: 4px solid var(--color-gold);
  --fold-red-border: 4px solid var(--color-red);
  --fold-bg:
    linear-gradient(150deg, rgba(231, 184, 76, 0.07), transparent 42%),
    var(--color-bg-secondary);
  --inner-panel-bg: rgba(11, 14, 20, 0.42);
  --inner-panel-border: rgba(231, 184, 76, 0.2);
}

/* ===== 首屏英雄区 ===== */
.page-products .hero-section {
  position: relative;
  padding: 64px 0 76px;
  background:
    radial-gradient(circle at 82% 22%, rgba(231, 184, 76, 0.16), transparent 46%),
    linear-gradient(145deg, rgba(43, 196, 182, 0.09), transparent 36%),
    var(--color-bg);
  border-bottom: 4px solid var(--color-red);
}

.page-products .hero-inner {
  display: grid;
  gap: 28px;
  padding: 0 16px;
}

.page-products .hero-kicker {
  margin: 18px 0 0;
  color: var(--color-gold);
  letter-spacing: 0.12em;
}

.page-products .page-title {
  color: var(--color-cream);
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 7vw, 3.7rem);
  line-height: 1.18;
  margin: 12px 0 16px;
  font-weight: 800;
}

.page-products .page-intro {
  color: var(--color-stone);
  max-width: 62ch;
  line-height: 1.75;
  font-size: 16px;
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* hero 曲线面板 */
.page-products .hero-panel {
  position: relative;
  margin-top: 8px;
}

.page-products .hero-svg {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  background:
    linear-gradient(rgba(43, 196, 182, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 196, 182, 0.06) 1px, transparent 1px);
  background-size: 16px 16px;
  border: 1px solid rgba(231, 184, 76, 0.22);
  padding: 10px;
  box-sizing: border-box;
}

.page-products .curve-line--gold {
  fill: none;
  stroke: var(--color-gold);
  stroke-width: 2.5;
  stroke-linecap: round;
}

.page-products .curve-line--teal {
  fill: none;
  stroke: var(--color-teal);
  stroke-width: 2;
  stroke-dasharray: 5 4;
  stroke-linecap: round;
}

.page-products .grid-dots {
  fill: var(--color-gold-bright);
}

.page-products .hero-panel-note {
  color: var(--color-stone);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-top: 8px;
}

/* ===== 主体布局 ===== */
.page-products .service-layout {
  display: grid;
  gap: 32px;
  padding: 56px 16px 80px;
}

/* ===== 服务目录(左栏) ===== */
.page-products .service-directory {
  order: -1;
}

.page-products .directory-sticky {
  position: static;
  background: rgba(26, 29, 36, 0.72);
  border: 1px solid rgba(231, 184, 76, 0.18);
  padding: 20px;
}

.page-products .directory-kicker {
  color: var(--color-red-bright);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0;
}

.page-products .directory-title {
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin: 6px 0 16px;
}

.page-products .directory-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .directory-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-cream);
  font-size: 15px;
  padding: 8px 10px;
  border-left: 2px solid var(--color-gold);
  text-decoration: none;
  background: rgba(11, 14, 20, 0.55);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-products .directory-link:hover {
  background: rgba(231, 184, 76, 0.12);
  transform: translateX(3px);
}

.page-products .directory-link:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.page-products .dir-num {
  font-family: var(--font-num);
  color: var(--color-gold);
  font-weight: 600;
}

.page-products .dir-name {
  color: var(--color-cream);
}

.page-products .directory-note {
  color: var(--color-stone);
  font-size: 13px;
  margin-top: 14px;
  line-height: 1.6;
}

/* ===== 右栏三折页 ===== */
.page-products .service-content {
  display: grid;
  gap: 40px;
  min-width: 0;
}

.page-products .fold-card {
  position: relative;
  background: var(--fold-bg);
  border-left: var(--fold-gold-border);
  padding: 28px 20px 34px;
}

.page-products .fold-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 22px 22px 0;
  border-color: transparent var(--color-bg) transparent transparent;
}

.page-products .fold-card:nth-child(even) {
  border-left-color: var(--color-red);
}

.page-products .fold-card:nth-child(even)::after {
  left: 0;
  right: auto;
  border-width: 22px 0 0 22px;
  border-color: transparent transparent transparent var(--color-bg);
}

/* ===== 区块标题组 ===== */
.page-products .section-heading {
  position: relative;
  margin-bottom: 20px;
  padding-right: 34px;
}

.page-products .section-heading .section-kicker {
  color: var(--color-red-bright);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0;
}

.page-products .section-heading .section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  color: var(--color-cream);
  margin: 4px 0 0;
  line-height: 1.25;
  font-weight: 700;
}

.page-products .section-heading .section-note {
  position: absolute;
  right: 0;
  top: 4px;
  writing-mode: vertical-rl;
  color: var(--color-stone);
  font-size: 12px;
  letter-spacing: 0.1em;
}

/* ===== V4 服务清单 ===== */
.page-products .board-lead {
  color: var(--color-stone);
  border-left: 2px solid var(--color-gold);
  padding-left: 14px;
  margin: 0 0 24px;
  line-height: 1.7;
  font-size: 15px;
}

.page-products .data-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
  background: rgba(11, 14, 20, 0.6);
  border: 1px dashed rgba(231, 184, 76, 0.3);
  padding: 12px 14px;
}

.page-products .data-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 68px;
  padding: 4px 12px;
  border-left: 1px solid rgba(231, 184, 76, 0.2);
}

.page-products .data-cell:first-child {
  border-left: none;
}

.page-products .data-num {
  font-family: var(--font-num);
  font-size: 1.6rem;
  color: var(--color-gold-bright);
  line-height: 1.1;
}

.page-products .data-label {
  font-size: 11px;
  color: var(--color-stone);
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.page-products .v4-grid {
  display: grid;
  gap: 28px;
}

.page-products .chart-panel,
.page-products .protocol-panel {
  background: var(--inner-panel-bg);
  padding: 16px;
  align-self: start;
}

.page-products .panel-title {
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin: 0 0 12px;
  font-weight: 700;
}

.page-products .chart-img,
.page-products .protocol-img,
.page-products .zone-img,
.page-products .archive-img,
.page-products .download-img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.page-products .chart-img {
  border-bottom: 1px solid rgba(231, 184, 76, 0.25);
  margin-bottom: 12px;
}

.page-products .chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .protocol-toggle {
  position: relative;
}

.page-products .toggle-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-products .toggle-title {
  color: var(--color-stone);
  font-size: 13px;
}

.page-products .toggle-switch {
  display: flex;
  gap: 4px;
  border: 1px solid rgba(231, 184, 76, 0.3);
  padding: 3px;
}

.page-products .toggle-btn {
  cursor: pointer;
  color: var(--color-stone);
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 1px;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-products .protocol-toggle input#proto-before:checked ~ .toggle-head .toggle-btn[for="proto-before"],
.page-products .protocol-toggle input#proto-after:checked ~ .toggle-head .toggle-btn[for="proto-after"] {
  background: var(--color-gold);
  color: var(--color-bg);
  font-weight: 600;
}

.page-products .proto-stage {
  display: none;
}

.page-products .protocol-toggle input#proto-before:checked ~ .stage-before,
.page-products .protocol-toggle input#proto-after:checked ~ .stage-after {
  display: block;
}

.page-products .protocol-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-products .protocol-list li {
  color: var(--color-stone);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
  font-size: 14px;
}

.page-products .protocol-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--color-teal);
  transform: rotate(45deg);
}

.page-products .protocol-img {
  margin-bottom: 10px;
  border: 1px solid rgba(43, 196, 182, 0.25);
}

.page-products .v4-extra {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.page-products .help-details {
  background: rgba(11, 14, 20, 0.4);
  border: 1px solid rgba(231, 184, 76, 0.16);
  padding: 12px 14px;
}

.page-products .help-details summary {
  color: var(--color-gold);
  cursor: pointer;
  font-weight: 600;
  list-style-position: inside;
}

.page-products .help-details p {
  color: var(--color-stone);
  margin: 10px 0 0;
  line-height: 1.7;
  font-size: 14px;
}

.page-products .help-details a {
  color: var(--color-teal);
}

/* ===== 电竞专区变更说明 ===== */
.page-products .zone-inner {
  display: grid;
  gap: 24px;
}

.page-products .zone-board {
  padding: 18px 16px;
  background: var(--inner-panel-bg);
}

.page-products .zone-lead {
  color: var(--color-cream);
  line-height: 1.75;
  font-size: 15px;
  margin: 0;
}

.page-products .zone-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .zone-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--color-stone);
  line-height: 1.6;
  font-size: 14px;
}

.page-products .zone-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  transform: rotate(45deg);
  margin-top: 4px;
}

.page-products .zone-dot--gold {
  background: var(--color-gold);
}

.page-products .zone-dot--red {
  background: var(--color-red);
}

.page-products .zone-dot--teal {
  background: var(--color-teal);
}

.page-products .zone-dot--cream {
  background: var(--color-cream);
}

.page-products .zone-media {
  background: var(--inner-panel-bg);
  padding: 12px;
  border-top: 2px solid var(--color-teal);
}

.page-products .media-note {
  color: var(--color-stone);
  font-size: 12px;
  text-align: right;
  margin-top: 6px;
}

/* ===== 案例合集归档 ===== */
.page-products .archive-lead-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.page-products .archive-lead {
  color: var(--color-stone);
  line-height: 1.7;
  max-width: 70ch;
  font-size: 15px;
  margin: 0;
}

.page-products .archive-layout {
  display: grid;
  gap: 18px;
  align-items: start;
}

.page-products .archive-cover {
  background: var(--inner-panel-bg);
  padding: 10px;
  border: 1px solid var(--inner-panel-border);
}

.page-products .timeline-wrap {
  overflow: hidden;
}

.page-products .timeline-track {
  list-style: none;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 4px 4px 14px;
  scroll-snap-type: x mandatory;
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gold) rgba(11, 14, 20, 0.5);
}

.page-products .issue-item {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: 178px;
  background: rgba(11, 14, 20, 0.5);
  border: 1px solid rgba(231, 184, 76, 0.18);
  border-top: 3px solid var(--color-gold);
  padding: 14px 12px;
  position: relative;
}

.page-products .issue-item:nth-child(4n) {
  border-top-color: var(--color-red);
}

.page-products .issue-item:nth-child(4n+2) {
  border-top-color: var(--color-teal);
}

.page-products .issue-num {
  font-family: var(--font-num);
  color: var(--color-gold-bright);
  font-size: 1.1rem;
}

.page-products .issue-name {
  color: var(--color-cream);
  font-size: 15px;
  margin: 6px 0 4px;
  font-weight: 600;
}

.page-products .issue-verdict {
  color: var(--color-stone);
  font-size: 12px;
  line-height: 1.5;
  margin: 0;
}

.page-products .timeline-hint {
  color: var(--color-stone);
  font-size: 12px;
  margin-top: 8px;
  text-align: right;
}

/* ===== 客户端下载与迁移 ===== */
.page-products .download-layout {
  display: grid;
  gap: 20px;
}

.page-products .download-card,
.page-products .migration-card {
  background: var(--inner-panel-bg);
  padding: 18px 16px;
  border-top: 2px solid var(--color-red);
}

.page-products .download-card {
  border-top-color: var(--color-gold);
}

.page-products .download-img {
  border: 1px solid rgba(43, 196, 182, 0.25);
  margin-bottom: 14px;
}

.page-products .download-card p,
.page-products .migration-card p {
  color: var(--color-stone);
  line-height: 1.7;
  font-size: 14px;
}

.page-products .download-tip {
  margin: 14px 0;
  background: rgba(231, 184, 76, 0.08);
  border: 1px solid rgba(231, 184, 76, 0.25);
  padding: 10px 14px;
}

.page-products .download-tip summary {
  display: inline-block;
  cursor: pointer;
  color: var(--color-gold);
  font-weight: 600;
  border: 1px solid rgba(231, 184, 76, 0.35);
  padding: 8px 14px;
  background: rgba(231, 184, 76, 0.08);
  transition: background 0.2s ease, color 0.2s ease;
}

.page-products .download-tip summary:hover {
  background: rgba(231, 184, 76, 0.18);
  color: var(--color-cream);
}

.page-products .download-tip p {
  margin: 12px 0 0;
}

.page-products .migration-list {
  list-style: none;
  margin: 12px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .migration-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-stone);
  line-height: 1.6;
  font-size: 14px;
}

.page-products .migration-step {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  background: rgba(43, 196, 182, 0.15);
  color: var(--color-teal);
  border: 1px solid rgba(43, 196, 182, 0.4);
  font-family: var(--font-num);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-products .hero-inner {
    grid-template-columns: 1fr 280px;
    align-items: center;
    gap: 40px;
  }

  .page-products .directory-nav {
    flex-direction: column;
  }

  .page-products .archive-lead-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .page-products .download-layout {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-products .fold-card {
    padding: 36px 30px 42px;
  }
}

@media (min-width: 1024px) {
  .page-products .service-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 40px;
  }

  .page-products .service-directory {
    order: initial;
  }

  .page-products .directory-sticky {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }

  .page-products .v4-grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
  }

  .page-products .zone-inner {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    gap: 32px;
  }

  .page-products .archive-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 24px;
  }

  .page-products .fold-card {
    padding: 40px 36px 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .directory-link,
  .page-products .toggle-btn,
  .page-products .download-tip summary {
    transition: none;
  }
}