.chat-changelog-card{display:block;width:min(420px,100%);margin:12px auto;padding:0;border:1px solid #dbe6ff;border-radius:18px;background:linear-gradient(145deg,#fff 0%,#f1f6ff 100%);box-shadow:0 10px 28px rgba(36,69,138,.12);overflow:hidden;text-align:left;color:#162945;cursor:pointer;transition:transform .2s,box-shadow .2s}.chat-changelog-card:hover,.chat-changelog-card:focus-visible{transform:translateY(-2px);box-shadow:0 14px 32px rgba(36,69,138,.18)}.chat-changelog-card__image{display:block;width:100%;height:170px;object-fit:cover}.chat-changelog-card__body{display:block;padding:16px 18px}.chat-changelog-card__eyebrow{display:block;color:#3865db;letter-spacing:.12em;font-size:10px;font-weight:850}.chat-changelog-card__title{display:block;margin:7px 0;font-size:17px;font-weight:800;line-height:1.25}.chat-changelog-card__foot{display:flex;justify-content:space-between;gap:8px;align-items:center;color:#476adb;font-size:12px;font-weight:700}.chat-changelog-card__time{color:#8995aa;font-weight:500}.chat-message-item.is-changelog-card{width:100%}.changelog-timeline{max-width:760px;margin:auto;padding:4px 12px 60px;color:#1c2c49}.changelog-timeline__hero{padding:20px 8px 30px}.changelog-timeline__eyebrow{font-size:11px;font-weight:850;letter-spacing:.17em;color:#4d72dc}.changelog-timeline__hero h1{font-size:clamp(26px,5vw,38px);font-weight:850;line-height:1.1;margin:12px 0}.changelog-timeline__hero p{color:#6d7c93;margin:0 0 12px}.changelog-timeline__total{display:inline-block;padding:7px 12px;border-radius:999px;background:#e9f0ff;color:#365dcd;font-size:12px;font-weight:750}.changelog-timeline__list{margin:0;padding:0;list-style:none}.changelog-timeline__item{display:grid;grid-template-columns:34px minmax(0,1fr)}.changelog-timeline__rail{position:relative;display:flex;justify-content:center}.changelog-timeline__rail:after{content:"";position:absolute;top:21px;bottom:0;width:2px;background:#dce6fb}.changelog-timeline__item:last-child .changelog-timeline__rail:after{display:none}.changelog-timeline__rail span{width:13px;height:13px;border:3px solid #4a70da;border-radius:50%;background:#fff;z-index:1;margin-top:7px}.changelog-timeline__article{padding:0 0 36px 10px;min-width:0}.changelog-timeline__meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:12px;color:#8190a6}.changelog-timeline__meta span{color:#4268d4;font-weight:850}.changelog-timeline__article h2{font-size:23px;line-height:1.2;font-weight:800;margin:9px 0 13px}.changelog-timeline__description{color:#45536a;line-height:1.6;overflow-wrap:anywhere}.changelog-timeline__description img{max-width:100%;height:auto}.changelog-timeline__description a{color:#3865db}.changelog-gallery{margin-top:20px}.changelog-gallery__track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;border-radius:16px;background:#ecf2fc}.changelog-gallery__track::-webkit-scrollbar{display:none}.changelog-gallery__slide{position:relative;flex:0 0 100%;height:300px;margin:0;scroll-snap-align:start}.changelog-gallery__slide img{width:100%;height:100%;object-fit:contain}.changelog-gallery__slide figcaption{position:absolute;right:12px;bottom:12px;border-radius:999px;background:#13213ab8;color:#fff;font-size:11px;padding:5px 9px}.changelog-gallery__controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:10px;font-size:12px;color:#6d7c93}.changelog-gallery__controls button{display:grid;place-items:center;width:30px;height:30px;border:1px solid #dce5f6;background:#fff;border-radius:50%;color:#4568ca}.changelog-timeline__empty{padding:30px;text-align:center;color:#8793a5}@media(max-width:600px){.changelog-gallery__slide{height:220px}.changelog-timeline__article h2{font-size:20px}.chat-changelog-card__image{height:145px}}body.dark-mode .changelog-timeline{color:#edf3ff}body.dark-mode .changelog-timeline__description{color:#c1cee4}body.dark-mode .chat-changelog-card{background:linear-gradient(145deg,#26344d,#1b2d50);color:#f1f5ff;border-color:#435d8d}