body{min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}.announcement-page{width:min(840px,calc(100% - 40px));margin:0 auto;padding:40px 0 72px;flex:1}.announcement-page-head{margin-bottom:24px}.announcement-page-head h1{margin:0;font-size:28px;line-height:1.25;letter-spacing:-.02em}.announcement-page-head p{margin:10px 0 0;color:var(--text-2);font-size:15px}.announcement-list{display:flex;flex-direction:column;gap:12px}.announcement-item{overflow:hidden;scroll-margin-top:86px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}.announcement-item[open]{border-color:rgba(91,87,214,.26)}.announcement-item summary{display:flex;align-items:center;gap:14px;padding:17px 19px;cursor:pointer;list-style:none}.announcement-item summary::-webkit-details-marker{display:none}.announcement-item-title{min-width:0;flex:1;font-size:15px;font-weight:650}.announcement-item time{flex:0 0 auto;color:var(--muted);font-size:12px}.announcement-item-chevron{color:var(--muted);transition:transform .16s ease}.announcement-item[open] .announcement-item-chevron{transform:rotate(90deg)}.announcement-item-content{margin:0;padding:0 19px 20px;border-top:1px solid var(--border);color:var(--text-2);font-size:14px;line-height:1.75;white-space:pre-wrap}.announcement-item-content::before{content:"";display:block;height:17px}.announcement-empty{padding:48px 18px;border:1px dashed var(--border);border-radius:14px;color:var(--muted);text-align:center}@media (max-width:600px){.announcement-page{width:min(100% - 28px,840px);padding-top:34px}.announcement-item{scroll-margin-top:70px}.announcement-item summary{align-items:flex-start;flex-wrap:wrap}.announcement-item time{order:3;width:100%}}