.talk-hero {
  padding: 54px 0 44px;
  background: radial-gradient(900px 380px at 82% -20%, rgba(0,72,157,.07), transparent 62%), var(--paper);
  border-bottom: 1px solid var(--line);
}
.talk-hero-grid { display: grid; grid-template-columns: 1fr 300px; gap: 62px; align-items: end; }
.talk-hero .ihq-kicker { margin-bottom: 22px; }
.talk-hero h1 { margin: 0 0 22px; font-size: 50px; line-height: 1.12; letter-spacing: -.045em; font-weight: 700; color: #0e1620; }
.talk-hero h1 span { color: var(--blue); }
.talk-hero .ihq-lede { max-width: 32em; margin-bottom: 26px; }

.talk-stats { border-top: 1px solid var(--gold); padding-top: 14px; }
.talk-stats > div { display: flex; align-items: baseline; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.talk-stats b { min-width: 40px; font-family: var(--font-serif); font-size: 30px; font-weight: 600; line-height: 1; color: var(--blue); }
.talk-stats span { font-size: 11px; letter-spacing: .05em; color: #5f6975; }
.talk-stats p { margin: 14px 0 0; font-size: 9.5px; line-height: 1.8; color: #9aa3ad; }

.talk-section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; flex-wrap: wrap; margin-bottom: 22px; padding-top: 10px; border-top: 1px solid var(--gold); }
.talk-section-head .ihq-kicker { margin: 0; padding-top: 0; border-top: 0; }
.talk-section-note { font-size: 9.5px; letter-spacing: .04em; color: #9aa3ad; }

.talk-feature { padding: 44px 0 12px; }
.talk-feature-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 46px; align-items: start; }

.talk-poster {
  position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; padding: 0;
  border: 1px solid #1e2b3a; background: #17212b; color: #fff;
  cursor: pointer; overflow: hidden; text-align: left;
  transition: transform .18s ease, box-shadow .18s ease;
}
.talk-poster[data-track="liyun"] { background: radial-gradient(560px 300px at 72% 18%, rgba(151,119,64,.32), transparent 66%), #17212b; }
.talk-poster[data-track="lishang"] { background: radial-gradient(560px 300px at 72% 18%, rgba(64,132,206,.32), transparent 66%), #00356f; }
.talk-poster::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.06); pointer-events: none; }
.talk-poster:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(10,22,38,.18); }
.talk-poster-top { position: absolute; left: 18px; top: 16px; font-size: 8.5px; letter-spacing: .14em; color: #d6bd88; }
.talk-poster-mark { position: absolute; right: 20px; bottom: -10px; font-family: var(--font-serif); font-size: 132px; line-height: 1; color: rgba(255,255,255,.055); pointer-events: none; }
.talk-play {
  position: absolute; left: 50%; top: 50%; width: 56px; height: 56px;
  transform: translate(-50%, -50%); display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(214,189,136,.75); background: rgba(8,16,26,.18);
  transition: background .18s ease, border-color .18s ease;
}
.talk-play i { width: 0; height: 0; margin-left: 4px; border-left: 12px solid #fff; border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
.talk-poster:hover .talk-play { background: var(--gold); border-color: var(--gold); }
.talk-poster-foot { position: absolute; left: 18px; right: 18px; bottom: 15px; display: flex; justify-content: space-between; font-size: 8.5px; letter-spacing: .12em; color: rgba(255,255,255,.62); }

.talk-feature-info { padding-top: 4px; }
.talk-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.talk-tags span { padding: 2px 7px; border: 1px solid #e3d3b8; background: #fffdf8; font-size: 9px; letter-spacing: .04em; color: #6f7883; }
.talk-feature-info h2 { margin: 0 0 10px; font-family: var(--font-serif); font-size: 30px; font-weight: 600; line-height: 1.5; letter-spacing: -.01em; color: #172431; }
.talk-by { margin: 0 0 4px; font-size: 11px; font-weight: 600; color: #39434e; }
.talk-project { margin: 0 0 16px; font-size: 10px; color: #8a939e; }
.talk-quote { margin: 0 0 14px; padding-left: 14px; border-left: 2px solid var(--gold); font-family: var(--font-serif); font-size: 15px; line-height: 1.8; color: #4f5a66; }
.talk-summary { margin: 0 0 20px; font-size: 11.5px; line-height: 1.95; color: #5f6975; }

.talk-grid-section { padding: 30px 0 56px; }
.talk-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 22px; }
.talk-card { cursor: pointer; outline: none; }
.talk-card:focus-visible .talk-poster { box-shadow: 0 0 0 2px rgba(0,72,157,.35); }
.talk-card:hover .talk-poster { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(10,22,38,.18); }
.talk-card h3 { margin: 13px 0 6px; font-family: var(--font-serif); font-size: 16.5px; font-weight: 600; line-height: 1.6; color: #1b2835; }
.talk-card:hover h3 { color: var(--blue); }
.talk-card p { margin: 0; font-size: 9.5px; letter-spacing: .02em; color: #8a939e; }

.talk-how { padding: 44px 0 46px; background: var(--cream); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.talk-how-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: 24px; }
.talk-how-head .ihq-kicker { margin-bottom: 10px; }
.talk-how-head p { margin: 0; font-family: var(--font-serif); font-size: 20px; line-height: 1.5; color: #1b2835; }
.talk-how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #e8e1d4; border: 1px solid #e8e1d4; }
.talk-how-grid > div { padding: 20px 20px 22px; background: var(--cream); }
.talk-how-grid b { display: block; margin-bottom: 8px; font-size: 9px; letter-spacing: .14em; color: var(--gold); }
.talk-how-grid h3 { margin: 0 0 8px; font-size: 15px; font-weight: 600; color: #1b2835; }
.talk-how-grid p { margin: 0; font-size: 11px; line-height: 1.8; color: #66707b; }

.talk-sheet {
  position: relative; width: 100%; max-width: 880px; max-height: 90vh; overflow-y: auto;
  background: #fff; box-shadow: 0 24px 70px rgba(5,15,30,.26);
  border-top: 3px solid var(--gold); outline: none;
}
.talk-sheet[data-track="lishang"] { border-top-color: var(--blue); }
.talk-video { position: relative; aspect-ratio: 16 / 9; background: #101820; }
.talk-video[data-track="liyun"] { background: radial-gradient(560px 300px at 72% 18%, rgba(151,119,64,.28), transparent 66%), #101820; }
.talk-video[data-track="lishang"] { background: radial-gradient(560px 300px at 72% 18%, rgba(64,132,206,.28), transparent 66%), #0b2440; }
.talk-video iframe { display: block; width: 100%; height: 100%; border: 0; }
.talk-video-placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.talk-video-placeholder .talk-play { position: static; transform: none; background: rgba(8,16,26,.2); }
.talk-video-placeholder p { margin: 6px 0 0; font-size: 11px; letter-spacing: .06em; color: #d6bd88; }
.talk-video-placeholder small { font-size: 9.5px; letter-spacing: .03em; color: rgba(255,255,255,.45); }
.talk-close { z-index: 2; color: #fff; background: rgba(8,16,26,.35); }
.talk-close:hover { color: #fff; background: rgba(8,16,26,.6); }
.talk-sheet-body { padding: 30px 38px 32px; }
.talk-sheet-body h2 { margin: 0 0 10px; font-family: var(--font-serif); font-size: 26px; font-weight: 600; line-height: 1.55; letter-spacing: -.01em; color: #172431; }
.talk-sheet-body .talk-quote { font-size: 16px; }
.talk-points { margin-top: 22px; padding-top: 4px; border-top: 1px solid #efebe2; }
.talk-points ol { margin: 0; padding-left: 18px; font-size: 11.5px; line-height: 1.95; color: #4f5a66; }
.talk-points li { margin-bottom: 6px; }

@media (max-width: 1000px) {
  .talk-hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .talk-hero h1 { font-size: 42px; }
  .talk-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 18px; border-top: 0; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
  .talk-stats > div { border-bottom: 0; border-top: 1px solid var(--gold); }
  .talk-stats p { grid-column: 1 / -1; margin-top: 10px; }
  .talk-feature-grid { grid-template-columns: 1fr; gap: 26px; }
  .talk-grid { grid-template-columns: 1fr 1fr; }
  .talk-how-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .talk-hero { padding: 38px 0 34px; }
  .talk-hero h1 { font-size: 33px; }
  .talk-hero .ihq-lede { font-size: 13.5px; }
  .talk-stats b { font-size: 24px; min-width: 30px; }
  .talk-feature { padding-top: 34px; }
  .talk-feature-info h2 { font-size: 24px; }
  .talk-grid { grid-template-columns: 1fr; }
  .talk-grid-section { padding-bottom: 40px; }
  .talk-how { padding: 36px 0 38px; }
  .talk-how-head p { font-size: 18px; }
  .talk-sheet-body { padding: 22px 20px 24px; }
  .talk-sheet-body h2 { font-size: 21px; }
  .talk-poster-mark { font-size: 100px; }
}