/* Unified editorial cards + agenda rows
   paper #faf7f5 · ink #1c1b19 · line #e5e2e0 · accent #eb5600 */

:root {
  --paper: #faf7f5;
  --ink: #1c1b19;
  --muted: #6b6560;
  --faint: #979696;
  --line: #e5e2e0;
  --line-soft: #ede9e7;
  --surface: #f3f0ef;
  --surface-soft: rgba(243, 240, 239, 0.55);
  --accent: #eb5600;
  --shell: 60rem;
  --prose: 40rem;
  --font-ui: MiSans, Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Serif SC", "Songti SC", "PT Serif", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.7;
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.letter-field {
  pointer-events: none;
  position: fixed;
  inset: -8% -5%;
  z-index: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  opacity: 0.5;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  mask-image: linear-gradient(180deg, #000 0%, #000 42%, transparent 72%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 42%, transparent 72%);
}

.lf-row {
  white-space: nowrap;
  font-family: var(--font-ui);
  font-size: clamp(1.4rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.35em;
  color: rgba(28, 27, 25, 0.055);
  animation: lf-drift 28s linear infinite;
  user-select: none;
}

.lf-row-alt {
  animation-direction: reverse;
  color: rgba(28, 27, 25, 0.04);
}

@keyframes lf-drift {
  from { transform: translateX(0); }
  to { transform: translateX(-12%); }
}

.cursor-glow {
  pointer-events: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.35s ease;
  background: radial-gradient(circle, rgba(235, 86, 0, 0.12), transparent 68%);
  mix-blend-mode: multiply;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(var(--shell), calc(100% - 3rem));
  margin: 0 auto;
  padding: 2.5rem 0 4.5rem;
}

/* Hero */
.hero {
  padding: 2.75rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
  cursor: default;
}

.kicker {
  margin: 0 0 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.88;
}

.hero-title {
  margin: 0;
  max-width: 16ch;
  font-family: var(--font-ui);
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--ink);
  cursor: default;
  user-select: none;
  text-wrap: balance;
}

.hero-title .char {
  display: inline-block;
  transform-origin: 50% 80%;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
  will-change: transform;
}

.hero-title .char:hover {
  color: var(--accent);
}

.subtitle {
  position: relative;
  margin: 1.15rem 0 0;
  min-height: 1.8em;
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--muted);
}

.subtitle span {
  display: block;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.sub-en {
  position: absolute;
  inset: 0 auto auto 0;
  opacity: 0;
  transform: translateY(6px);
  font-family: var(--font-ui);
  font-weight: 650;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.hero.is-alt .sub-zh {
  opacity: 0;
  transform: translateY(-6px);
}

.hero.is-alt .sub-en {
  opacity: 1;
  transform: translateY(0);
}

.hero-meta {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
}

.hero-meta li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.65rem 1.05rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--surface-soft);
  font-family: var(--font-body);
  font-size: 1.02rem;
  color: var(--ink);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.hero-meta li:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.hero-meta span {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* Blocks */
.block {
  padding: 2.85rem 0;
  border-top: 1px solid var(--line);
  position: relative;
}

.block:first-of-type {
  border-top: 0;
  padding-top: 0.75rem;
}

.block.reveal {
  opacity: 0;
  transform: translateY(18px);
}

.block.reveal.is-in {
  animation: rise 0.55s ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.block-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.index {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  min-width: 1.85rem;
  padding-top: 0.15rem;
}

.index::after {
  content: "";
  display: block;
  width: 1.05rem;
  height: 1px;
  margin-top: 0.35rem;
  background: var(--line);
}

.block h2 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.block h2 em {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--muted);
}

.prose {
  max-width: var(--prose);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--ink);
}

.prose p {
  margin: 0 0 0.75rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose .en {
  color: var(--muted);
  font-style: italic;
  font-size: 0.98rem;
  line-height: 1.75;
  padding-left: 0.9rem;
  border-left: 2px solid var(--line-soft);
}

.note {
  margin: -0.35rem 0 1.15rem;
  max-width: var(--prose);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--faint);
}

/* Shared card surface */
.fact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface-soft);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.fact:hover {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
  transform: translateY(-1px);
}

.fact-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.fact-value {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
}

/* Agenda — hairline rows, no rail dots */
.agenda {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.slot {
  display: grid;
  grid-template-columns: 8.25rem 1fr;
  gap: 1rem 1.5rem;
  padding: 1.2rem 0.2rem;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.25s ease;
}

.slot:hover {
  background: var(--surface-soft);
}

.slot time {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  padding-top: 0.2rem;
  transition: color 0.2s ease;
}

.slot:hover time {
  color: var(--accent);
}

.slot-en {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--muted);
  margin-left: 0.35rem;
}

.slot h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-ui);
  font-size: 1.08rem;
  font-weight: 650;
  line-height: 1.35;
  color: var(--ink);
}

.slot.break h3 {
  font-weight: 550;
  color: var(--muted);
}

.slot.break time {
  color: var(--faint);
}

.who {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--muted);
}

.abstract {
  margin-top: 0.55rem;
  max-width: calc(var(--prose) + 1rem);
}

.abstract summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 0.32rem 0.75rem 0.32rem 0.65rem;
  user-select: none;
  background: transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.abstract summary::-webkit-details-marker {
  display: none;
}

.abstract summary:hover {
  color: var(--accent);
  border-color: rgba(235, 86, 0, 0.35);
  background: rgba(235, 86, 0, 0.04);
}

.abstract summary::before {
  content: "+";
  font-weight: 500;
  font-size: 0.9rem;
  line-height: 1;
  color: var(--faint);
}

.abstract[open] summary::before {
  content: "–";
}

.abstract-body {
  margin-top: 0.85rem;
  padding: 0.15rem 0 0.15rem 0.95rem;
  border-left: 2px solid var(--line);
  animation: rise 0.35s ease both;
}

.abstract-body.prose {
  font-size: 0.98rem;
  line-height: 1.8;
}

/* People / contact share one card */
.people {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.people-single {
  grid-template-columns: minmax(0, 24rem);
}

.person {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  padding: 1.15rem 1.3rem;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface-soft);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.person:hover {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
  transform: translateY(-1px);
}

.photo,
img.photo {
  display: block;
  flex: 0 0 auto;
  width: 5.25rem;
  height: 5.25rem;
  border-radius: 50%;
  overflow: hidden;
  object-fit: cover;
  object-position: center center;
  background: #ffffff;
  border: 1px solid var(--line);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.person:hover .photo {
  transform: scale(1.03);
}

.photo span {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.person-info {
  min-width: 0;
}

.person-info strong {
  display: block;
  font-family: var(--font-ui);
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 0.2rem;
  line-height: 1.3;
}

.person-info span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
}

.person-link {
  display: inline-block;
  margin-top: 0.35rem;
  margin-right: 0.55rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.person-link:hover {
  color: var(--accent);
  border-bottom-color: rgba(235, 86, 0, 0.35);
}

.person-mail {
  margin: 0.35rem 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
}

.org-contact {
  margin: 1.15rem 0 0;
  padding: 1rem 1.3rem 1.05rem;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface-soft);
  font-family: var(--font-ui);
  font-size: 0.98rem;
  color: var(--ink);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 1rem;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.org-contact:hover {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.org-contact-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  min-width: 4.5rem;
}

.org-contact-name {
  font-family: var(--font-ui);
  font-weight: 650;
  color: var(--ink);
}

.org-contact-mail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--muted);
}

.org-contact a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.05rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.org-contact a:hover {
  color: var(--accent);
  border-bottom-color: rgba(235, 86, 0, 0.4);
}

.org-contact .dot {
  color: var(--faint);
}

.person-mail a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.person-mail a:hover {
  color: var(--accent);
  border-bottom-color: rgba(235, 86, 0, 0.35);
}

.person-mail .dot {
  color: var(--faint);
}

/* Support lists */
.plain-people {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 36rem;
}

.marks {
  list-style: none;
  margin: 0 0 0.35rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 2rem;
}

.org-grid li,
.marks li {
  margin: 0.4rem 0;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  padding: 0.3rem 0.7rem 0.3rem 1.3rem;
  position: relative;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.org-grid li:hover,
.marks li:hover {
  background: var(--surface-soft);
}

.org-grid li::before,
.marks li::before {
  content: "–";
  position: absolute;
  left: 0.3rem;
  top: 0.3rem;
  color: var(--faint);
}

.mark-note {
  width: 100%;
  color: var(--muted) !important;
  font-size: 0.92rem !important;
  padding-left: 1.3rem !important;
  margin-top: 0 !important;
}

.mark-note::before {
  display: none !important;
}

.subhead {
  margin: 1.1rem 0 0.4rem !important;
  font-family: var(--font-ui);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.subhead:first-child {
  margin-top: 0 !important;
}

/* Footer */
.footer {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer p {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

[data-aigc-mark],
[data-aigc-mark="1"],
.aigc-mark {
  display: none !important;
  visibility: hidden !important;
}

::selection {
  background: rgba(235, 86, 0, 0.15);
  color: var(--ink);
}

@media (max-width: 860px) {
  .fact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(var(--shell), calc(100% - 1.5rem));
    padding: 1.5rem 0 3rem;
  }

  .hero {
    padding: 1.5rem 0 2rem;
  }

  .block {
    padding: 1.85rem 0;
  }

  .fact-grid,
  .people {
    grid-template-columns: 1fr;
  }

  .people-single {
    grid-template-columns: 1fr;
  }

  .slot {
    grid-template-columns: 1fr;
    gap: 0.2rem;
    padding: 1.05rem 0.1rem;
  }

  .photo,
  img.photo {
    width: 4.5rem;
    height: 4.5rem;
  }

  .cursor-glow {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .block.reveal {
    opacity: 1;
    transform: none;
  }

  .letter-field,
  .cursor-glow {
    display: none;
  }
}