.support-nav{display:grid;gap:8px;padding:16px 0 0;margin-top:16px;border-top:1px solid #e7e7e7;flex-shrink:0}
.support-download-nav{padding:8px 16px 12px;flex-shrink:0}
.design-web .rail .support-nav-button{width:100%;height:auto;min-height:44px;padding:10px 14px;font-size:14px;text-align:left;color:#333}
.design-web #auth .support-nav-button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;height:auto;width:100%;padding:10px 8px;border:0;border-radius:12px;background:#f1f1ef;color:#333;text-align:center;font:inherit;font-size:14px}
.design-web #auth .support-nav-button:hover{background:#e5e5e3;transform:none}
.support-entry-status{grid-column:1/-1;color:#666;font-size:13px;overflow-wrap:anywhere;margin:0}
.support-entry-status:empty{display:none}
.support-badge{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 6px;border-radius:12px;background:#222;color:#fff;font-size:12px}
.support-dialog{box-sizing:border-box;width:min(620px,calc(100vw - 24px));height:min(720px,calc(100dvh - 32px));max-height:calc(100dvh - 32px);padding:0;border:1px solid #ddd;border-radius:24px;background:#fff;color:#222;font:15px/1.6 "Microsoft YaHei",system-ui,sans-serif;overflow:hidden}
.support-dialog[open]{display:flex;flex-direction:column}
.support-dialog.support-download-dialog{height:fit-content}
.support-dialog::backdrop{background:#0005}
.support-dialog *{box-sizing:border-box}
.support-dialog>header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;margin:0;border-bottom:1px solid #eee;flex-shrink:0;height:auto}
.support-dialog h2{font-size:18px;margin:0}
.support-dialog button,.support-dialog textarea{font:inherit}
.support-dialog button{cursor:pointer;border:0;box-shadow:none;transform:none;min-height:44px;border-radius:22px;padding:8px 18px;background:#efefed;color:#222}
.support-dialog .support-close{width:44px;min-width:44px;height:44px;padding:0;font-size:25px;display:grid;place-items:center}
.support-dialog .support-older{align-self:center;font-size:13px;flex-shrink:0;padding:4px 16px;min-height:36px}
.support-messages{flex:1;min-height:80px;overflow:auto;overscroll-behavior:contain;padding:16px 20px}
.support-message{width:fit-content;max-width:88%;margin:0 0 16px;padding:10px 14px;border-radius:16px;background:#f1f1ef;color:#222}
.support-message.user{margin-left:auto;background:#262626;color:#fff}
.support-message small{display:block;margin-bottom:5px;font-size:11px;color:#737373}
.support-message.user small{color:#ccc}
.support-message div{white-space:pre-wrap;overflow-wrap:anywhere}
.support-empty{text-align:center;color:#737373;font-size:14px}
.support-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 12px;flex-shrink:0;padding:12px 20px 16px;border-top:1px solid #eee}
.support-form textarea{grid-column:1/-1;width:100%;min-height:72px;max-height:150px;resize:vertical;padding:10px 12px;border:1px solid #ddd;border-radius:14px;background:#fafafa;color:#222;line-height:1.5}
.support-previews{grid-column:1/-1;display:flex;gap:8px;overflow:auto}
.support-previews:empty{display:none}
.support-previews>div{position:relative;flex:none}
.support-previews img{width:72px;height:72px;object-fit:contain;border-radius:8px;background:#eee}
.support-previews button{position:absolute;right:0;top:0;min-height:28px;width:28px;padding:0}
.support-form .support-status{grid-column:1/-1;grid-row:4}
.support-form .support-send{grid-column:2}
.support-image img{width:160px;height:120px;object-fit:contain}
.support-dialog .support-image{display:block;padding:4px;margin-top:8px;background:transparent}
.support-image-view{height:fit-content}
.support-image-view>img{display:block;max-width:100%;max-height:70dvh;object-fit:contain}
.support-status{margin:0;align-self:center;min-height:22px;color:#666;font-size:13px;overflow-wrap:anywhere}
.support-dialog .support-send{background:#222;color:#fff;align-self:end;min-width:80px}
.design-web .support-dialog button:hover:not(:disabled){background:#e3e3e1;transform:none;box-shadow:none}
.design-web .support-dialog .support-send:hover:not(:disabled){background:#3b3b3b;color:#fff}
.support-dialog button:disabled{opacity:.5;cursor:default}
.support-dialog [hidden],.support-nav [hidden]{display:none!important}
.support-download{overflow:auto;padding:20px;display:grid;gap:16px}
.support-download>.support-status:empty{display:none}
.support-download p{overflow-wrap:anywhere}
.support-inbox{margin:0 0 28px;padding:20px;border:1px solid #ddd;border-radius:18px;background:white}
.support-inbox .heading{align-items:center;margin-bottom:12px}
#supportInboxList{display:grid;gap:8px;max-height:380px;overflow:auto}
.support-inbox-item{display:grid;gap:4px;text-align:left;min-width:0;width:100%;padding:12px 16px;border-radius:14px;background:#f5f5f3;color:#333;min-height:44px}
.support-inbox-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.support-inbox-item small{color:#777}
.support-inbox-item.unread{border-left:4px solid #222}
.support-inbox-item.unread strong:before{content:'● ';font-size:10px}
@media(max-width:500px){.support-dialog{border-radius:20px}.support-dialog>header{padding:10px 14px}.support-intro{padding:8px 14px}.support-messages{padding:12px 14px}.support-form{padding:10px 14px 12px}.support-inbox{padding:14px}.support-inbox .heading{align-items:stretch}.support-message{max-width:94%}}