:root { color-scheme: light; --paper: #f8f7f2; --ink: #273d36; --muted: #64716c; --line: #d7ddd4; --green: #e5eadf; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 25px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 5px; }
:focus-visible { outline: 3px solid #ad5b32; outline-offset: 5px; }
[hidden] { display: none !important; }
.wrap { width: min(100% - 56px, 1040px); margin-inline: auto; }
.nav { display: flex; justify-content: space-between; align-items: center; padding-block: 26px; border-bottom: 1px solid var(--line); gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 650; letter-spacing: -.3px; }
.brand-icon { display: grid; place-items: center; width: 31px; height: 35px; border: 1px solid var(--ink); border-radius: 2px 7px 7px 2px; font-size: 25px; line-height: 1; }
nav { display: flex; gap: 26px; font-size: 14px; }
.intro { position: relative; padding: 72px 0 54px; }
.eyebrow { font-size: 11px; letter-spacing: 2px; font-weight: 700; margin: 0 0 16px; }
h1 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; font-size: clamp(36px, 5.5vw, 62px); letter-spacing: -1.5px; line-height: 1.25; margin: 0 0 24px; }
.lead { max-width: 630px; color: var(--muted); font-size: 16px; margin: 0 0 22px; }
.text-link { font-size: 14px; border-bottom: 1px solid var(--ink); padding-bottom: 4px; }
.text-link span { margin-left: 30px; }
.intro-note { margin-top: 43px; display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 12px; }
.dot { width: 7px; height: 7px; background: #71845b; border-radius: 50%; }
.divider { margin-inline: 6px; color: #adb6ad; }
.notice { margin: 24px 0 0; padding: 12px 16px; border: 1px solid #d9cba8; background: #f1e9d6; color: #6b5530; border-radius: 5px; font-size: 13px; }
.next { display: grid; grid-template-columns: 240px 1fr; background: var(--green); border: 1px solid #d1d9c9; border-radius: 10px; padding: 34px; gap: 34px; }
.next-side { border-right: 1px solid #c4cebe; padding-right: 24px; }
.next .eyebrow { color: #5d7353; margin-bottom: 8px; }
h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: 28px; font-weight: 600; line-height: 1.4; }
.date { font-size: 20px; font-weight: 600; margin: 30px 0 0; }
.muted { color: var(--muted); font-size: 13px; margin: 6px 0; }
h3 { font-size: 23px; font-weight: 600; line-height: 1.45; margin: 0 0 12px; overflow-wrap: anywhere; }
.summary { color: #57655d; font-size: 14px; margin: 0 0 20px; white-space: pre-line; overflow-wrap: anywhere; }
.meta { font-size: 13px; margin: 0 0 26px; display: grid; gap: 6px; }
.meta div { display: grid; grid-template-columns: 80px 1fr; gap: 10px; }
dt { color: var(--muted); } dd { margin: 0; overflow-wrap: anywhere; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.button { display: inline-block; padding: 8px 16px; font-size: 13px; border: 1px solid #afbaaa; border-radius: 5px; background: #fafbf6; }
.button:hover { background: #f0f3e9; }
.schedule-note { font-size: 13px; color: #784823; margin: 0 0 15px; }
.reading-list { margin-top: 24px; padding-top: 18px; border-top: 1px solid #c4cebe; font-size: 13px; }
.reading-list h4 { margin: 0 0 9px; font-size: 13px; }
.reading-list ul { margin: 0; padding-left: 18px; }
.reading-list li { margin: 8px 0; overflow-wrap: anywhere; }
.reading-list a { text-decoration: underline; text-underline-offset: 3px; }
.archive { margin-top: 68px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.section-heading .eyebrow { color: var(--muted); margin-bottom: 9px; }
.archive-tools { margin-top: 28px; display: flex; gap: 20px; align-items: center; font-size: 13px; }
input { width: 340px; max-width: 100%; border: 1px solid var(--line); background: #fffefa; color: var(--ink); font: inherit; padding: 12px 15px; border-radius: 5px; }
input::placeholder { color: #6f7771; }
.archive-list { margin-top: 25px; }
.archive-card { display: grid; grid-template-columns: 200px 1fr; gap: 28px; padding: 30px 0; border-top: 1px solid var(--line); }
.archive-date { font-size: 13px; color: var(--muted); margin: 5px 0; }
.archive-card h3 { font-size: 20px; margin-bottom: 5px; }
.speaker { color: var(--muted); font-size: 12px; margin: 0 0 12px; }
.archive-card .summary { margin-bottom: 12px; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.tags:empty { display: none; }
.tag { background: #e9eae2; border-radius: 4px; padding: 2px 8px; font-size: 11px; color: #58634e; }
.empty { padding: 36px 0; border-block: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.file-note { font-size: 12px; color: var(--muted); margin: 22px 0 0; }
.footer { margin-top: 65px; padding-block: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 12px; }
.skip { position: absolute; top: 0; left: 15px; transform: translateY(-150%); padding: 8px 15px; background: white; z-index: 10; }
.skip:focus { transform: translateY(0); }
@media (max-width: 680px) {
  .wrap { width: calc(100% - 36px); }
  .nav { padding-block: 20px; gap: 12px; } nav { gap: 15px; font-size: 12px; } .brand { font-size: 14px; gap: 7px; }
  .intro { padding: 42px 0 34px; } .intro-note { margin-top: 30px; }
  .next { grid-template-columns: 1fr; padding: 24px; gap: 24px; }
  .next-side { border-right: 0; border-bottom: 1px solid #c4cebe; padding: 0 0 20px; }
  .date { margin-top: 17px; }
  .archive { margin-top: 42px; }
  .archive-card { grid-template-columns: 1fr; gap: 10px; }
  .archive-tools { display: block; } .archive-tools label { display: block; margin-bottom: 8px; } input { width: 100%; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .footer { flex-direction: column; gap: 8px; margin-top: 45px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
button.button { font-family: inherit; cursor: pointer; color: var(--ink); }
button.button:disabled { opacity: .65; cursor: wait; }
.discussion-section { margin-top: 64px; padding: 30px; border: 1px solid var(--line); border-radius: 10px; background: #fffefa; }
.discussion-intro { margin: 14px 0 24px; color: var(--muted); font-size: 14px; }
#discussion-controls label { display: block; font-size: 13px; margin-bottom: 8px; }
#discussion-session { width: 100%; min-width: 0; max-width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 5px; font: inherit; font-size: 13px; color: var(--ink); background: var(--paper); }
.discussion-topic { margin: 24px 0 20px; }
.discussion-topic h3 { font-size: 20px; }
.discussion-topic p, .discussion-help, .discussion-status { font-size: 13px; color: var(--muted); }
.discussion-help { margin: 14px 0 22px; }
.discussion-status { margin: 22px 0; }
.comment-card { padding: 20px 0; border-top: 1px solid var(--line); }
.comment-header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font-size: 13px; }
.comment-header time { color: var(--muted); font-size: 12px; }
.comment-body { font-size: 14px; white-space: pre-wrap; overflow-wrap: anywhere; }
.comment-link { font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
#discussion-more { margin-top: 15px; }
@media (max-width: 850px) { .nav { flex-wrap: wrap; } nav { flex-wrap: wrap; } }
@media (max-width: 680px) { .discussion-section { padding: 22px; margin-top: 40px; } .discussion-actions .button { max-width: 100%; white-space: normal; } }

.join-section { margin-top: 48px; padding: 30px; border: 1px solid var(--line); border-radius: 10px; background: #fffefa; }
.join-schedule { margin: 12px 0 24px; font-size: 14px; color: var(--muted); }
.join-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 36px; }
.button-primary { background: var(--ink); border-color: var(--ink); color: white; }
.button-primary:hover { background: #3b5148; }
.meeting-details { margin: 20px 0 16px; }
.calendar-instructions, .calendar-note { font-size: 12px; color: var(--muted); }
.calendar-instructions { margin: 0 0 10px; }
.calendar-note { margin: 12px 0 0; }
.contact-card { border-left: 1px solid var(--line); padding-left: 28px; }
.contact-card h3 { font-size: 20px; margin: 0 0 12px; }
.contact-card p { font-size: 13px; margin: 0 0 10px; color: var(--muted); }
.contact-card a { display: block; width: fit-content; font-size: 13px; margin-top: 8px; overflow-wrap: anywhere; text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 680px) {
  .nav { flex-wrap: wrap; }
  nav { flex-wrap: wrap; }
  .join-section { padding: 24px; margin-top: 32px; }
  .join-grid { grid-template-columns: 1fr; gap: 26px; }
  .contact-card { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0 0; }
}

.presenter-section { margin-top: 48px; padding: 30px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 36px; border: 1px solid var(--line); border-radius: 10px; background: #fffefa; }
.presenter-heading .eyebrow { color: var(--muted); margin-bottom: 9px; }
.presenter-role { font-size: 13px; color: var(--muted); margin: 14px 0 0; }
.presenter-body { min-width: 0; }
.presenter-body p { font-size: 14px; color: var(--muted); margin: 0 0 16px; }
.presenter-body .actions { margin-top: 22px; }
@media (max-width: 680px) { .presenter-section { grid-template-columns: 1fr; padding: 24px; gap: 22px; margin-top: 32px; } }

.presenter-body .button { background: #fff; }
.presenter-body .button:hover { background: #f5f5f5; }
.presenter-body .button-primary { background: #111; border-color: #111; color: #fff; }
.presenter-body .button-primary:hover { background: #292929; }