/* 一枝云说明：仅供说明聚合页及四个子页面使用，不影响原站页面 */

.info-site .site-footer { margin-top: 0; }

.info-subnav {
  background: oklch(0.99 0.004 240 / 0.94);
  border-bottom: 1px solid var(--line);
}

.info-subnav-inner {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.info-subnav-inner::-webkit-scrollbar { display: none; }

.info-subnav a {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  color: var(--fg-2);
  font-size: 13px;
  transition: color .18s ease, background .18s ease;
}

.info-subnav a:hover,
.info-subnav a.active {
  color: var(--fg);
  background: var(--accent-soft);
}

.info-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(76px, 10vw, 126px) 0 clamp(68px, 9vw, 112px);
}

.info-hero::before {
  content: '';
  position: absolute;
  width: 720px;
  height: 720px;
  right: -280px;
  top: -320px;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(0.76 0.14 240 / .16), transparent 66%);
  pointer-events: none;
}

.info-hero::after {
  content: '云';
  position: absolute;
  right: clamp(-42px, 1vw, 28px);
  bottom: -118px;
  font-family: var(--font-serif);
  font-size: clamp(220px, 32vw, 470px);
  line-height: 1;
  font-weight: 700;
  color: oklch(0.93 0.025 235 / .52);
  pointer-events: none;
  user-select: none;
}

.info-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
  gap: clamp(42px, 7vw, 88px);
  align-items: end;
}

.info-hero-copy .eyebrow { margin-bottom: 28px; }

.info-title {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(42px, 6.2vw, 78px);
  line-height: 1.06;
  letter-spacing: -.035em;
  font-weight: 700;
}

.info-title em {
  color: var(--accent);
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: 600;
}

.info-lede {
  max-width: 57ch;
  margin: 28px 0 0;
  color: var(--fg-2);
  font-size: clamp(16px, 1.55vw, 19px);
  line-height: 1.8;
}

.entity-panel {
  position: relative;
  background: var(--bg-ink);
  color: var(--fg-on-ink);
  border-radius: var(--r-xl);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.entity-panel::after {
  content: '';
  position: absolute;
  inset: auto -80px -100px auto;
  width: 210px;
  height: 210px;
  border: 1px solid oklch(0.7 0.13 240 / .25);
  border-radius: 50%;
}

.entity-label {
  font: 600 10px/1.4 var(--font-en);
  letter-spacing: .18em;
  color: var(--accent-glow);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.entity-brand {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 6px;
}

.entity-company {
  color: oklch(0.79 0.012 240);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 26px;
}

.entity-list {
  display: grid;
  gap: 13px;
  margin: 0;
}

.entity-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 14px;
  padding-top: 13px;
  border-top: 1px solid oklch(0.45 0.035 245 / .7);
}

.entity-row dt {
  margin: 0;
  color: oklch(0.66 0.018 240);
  font-size: 12px;
}

.entity-row dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.info-intro {
  background: white;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro-grid {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: clamp(36px, 7vw, 96px);
  align-items: start;
}

.intro-copy {
  margin: 0;
  color: var(--fg-2);
  font-size: 17px;
  line-height: 1.85;
  max-width: 64ch;
}

.statement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.statement-card {
  min-height: 310px;
  padding: clamp(30px, 4vw, 46px);
  background: white;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: background .2s ease, transform .2s ease;
}

.statement-card:hover {
  background: oklch(0.975 0.009 238);
  transform: translateY(-2px);
}

.statement-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 56px;
}

.statement-num {
  font: 600 12px/1 var(--font-mono);
  letter-spacing: .12em;
  color: var(--fg-3);
}

.statement-arrow {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--accent);
  transition: transform .18s ease, background .18s ease;
}

.statement-card:hover .statement-arrow {
  transform: translate(2px, -2px);
  background: var(--accent-soft);
}

.statement-tag {
  color: var(--accent);
  font: 700 10px/1.4 var(--font-en);
  letter-spacing: .18em;
  margin-bottom: 12px;
}

.statement-card h2 {
  margin: 0 0 14px;
  font-size: clamp(23px, 2.4vw, 31px);
  letter-spacing: -.02em;
}

.statement-card p {
  margin: 0;
  color: var(--fg-2);
  line-height: 1.75;
  font-size: 15px;
  max-width: 44ch;
}

.info-quiet {
  background: var(--bg);
}

.quiet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
}

.quiet-item {
  padding: 26px 0;
  border-top: 1px solid var(--line-2);
}

.quiet-item strong {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
}

.quiet-item p {
  margin: 0;
  color: var(--fg-2);
  font-size: 14px;
  line-height: 1.7;
}

/* 子页面 */
.info-page-hero {
  padding: clamp(70px, 9vw, 112px) 0 clamp(58px, 7vw, 90px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 88% 18%, oklch(0.78 0.13 240 / .13), transparent 28%),
    var(--bg);
}

.info-breadcrumb {
  margin-bottom: 28px;
  color: var(--fg-3);
  font-size: 13px;
}

.info-breadcrumb a:hover { color: var(--accent); }
.info-breadcrumb span { margin: 0 8px; color: var(--line-strong); }

.info-page-hero .h-display {
  max-width: 14ch;
  font-size: clamp(38px, 5.2vw, 66px);
}

.info-page-hero .lede {
  margin-top: 24px;
  max-width: 62ch;
  line-height: 1.8;
}

.info-page-main { background: white; }

.info-content-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: start;
}

.info-toc {
  position: sticky;
  top: 92px;
  padding-top: 6px;
}

.info-toc-label {
  font: 600 10px/1.4 var(--font-en);
  letter-spacing: .18em;
  color: var(--fg-3);
  margin-bottom: 18px;
}

.info-toc a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--fg-2);
  font-size: 13px;
}

.info-toc a:hover { color: var(--accent); }

.info-article {
  max-width: 780px;
}

.info-section-block {
  scroll-margin-top: 92px;
  padding: 0 0 60px;
  margin-bottom: 60px;
  border-bottom: 1px solid var(--line);
}

.info-section-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.section-index {
  color: var(--accent);
  font: 700 11px/1.4 var(--font-mono);
  letter-spacing: .1em;
  margin-bottom: 14px;
}

.info-section-block h2 {
  margin: 0 0 20px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.22;
  letter-spacing: -.02em;
}

.info-section-block > p {
  color: var(--fg-2);
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 22px;
}

.info-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  position: relative;
  padding: 17px 18px 17px 48px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg);
  color: var(--fg-2);
  line-height: 1.7;
}

.info-list li::before {
  content: '•';
  position: absolute;
  left: 20px;
  top: 14px;
  color: var(--accent);
  font-size: 22px;
}

.info-list strong { color: var(--fg); }

.info-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.info-mini-card {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  background: var(--bg);
}

.info-mini-card .mini-tag {
  font: 700 10px/1.4 var(--font-en);
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 12px;
}

.info-mini-card h3 {
  margin: 0 0 9px;
  font-size: 18px;
}

.info-mini-card p {
  margin: 0;
  color: var(--fg-2);
  font-size: 14px;
  line-height: 1.7;
}

.process-list {
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.process-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.process-num {
  font: 700 24px/1 var(--font-mono);
  color: var(--accent);
}

.process-body h3 { margin: 0 0 8px; font-size: 19px; }
.process-body p { margin: 0; color: var(--fg-2); line-height: 1.75; font-size: 15px; }

.method-demo {
  margin-top: 28px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.demo-head {
  padding: 24px 28px;
  background: var(--bg-ink);
  color: var(--fg-on-ink);
}

.demo-head small {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-glow);
  font: 700 10px/1.4 var(--font-en);
  letter-spacing: .16em;
}

.demo-head h3 { margin: 0; font-size: 21px; }

.demo-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: white;
}

.demo-step {
  padding: 24px;
  border-right: 1px solid var(--line);
}

.demo-step:last-child { border-right: 0; }
.demo-step strong { display: block; margin-bottom: 8px; }
.demo-step p { margin: 0; color: var(--fg-2); font-size: 14px; line-height: 1.7; }

.info-next {
  background: var(--bg-ink);
  color: var(--fg-on-ink);
}

.info-next-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-top: clamp(48px, 7vw, 76px);
  padding-bottom: clamp(48px, 7vw, 76px);
}

.info-next small {
  display: block;
  margin-bottom: 8px;
  color: oklch(0.7 0.02 240);
  font: 600 10px/1.4 var(--font-en);
  letter-spacing: .18em;
}

.info-next h2 { margin: 0; font-size: clamp(25px, 3vw, 38px); }
.info-next .btn-ghost { color: white; border-color: oklch(0.55 0.03 245); }
.info-next .btn-ghost:hover { background: oklch(0.32 0.04 245); }

@media (max-width: 900px) {
  .info-hero-grid { grid-template-columns: 1fr; align-items: start; }
  .entity-panel { max-width: 560px; }
  .intro-grid { grid-template-columns: 1fr; gap: 24px; }
  .info-content-layout { grid-template-columns: 1fr; gap: 44px; }
  .info-toc { position: static; display: none; }
  .demo-body { grid-template-columns: 1fr; }
  .demo-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .demo-step:last-child { border-bottom: 0; }
}

@media (max-width: 700px) {
  .info-subnav-inner { padding-top: 7px; padding-bottom: 7px; }
  .info-hero::after { right: -55px; bottom: -64px; }
  .info-title { font-size: clamp(38px, 12vw, 54px); }
  .statement-grid { grid-template-columns: 1fr; }
  .statement-card { min-height: 270px; }
  .statement-card-top { margin-bottom: 38px; }
  .quiet-grid, .info-columns { grid-template-columns: 1fr; }
  .process-item { grid-template-columns: 48px 1fr; gap: 16px; }
  .info-next-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 460px) {
  .entity-panel { padding: 24px; }
  .entity-row { grid-template-columns: 1fr; gap: 4px; }
  .statement-card { padding: 28px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .statement-card,
  .statement-arrow { transition: none; }
}