:root{color-scheme:light;--ink:#17263d;--muted:#65738a;--subtle:#8792a3;--line:#e3e8ef;--bg:#fff;--soft:#f5f7fa;--accent:#243c5b;--blue:#367fcd;--red:#b83f48}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.55}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:inherit;text-decoration:none}svg{display:block;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue);outline-offset:3px}input:focus,textarea:focus{outline:2px solid #367fcd66;outline-offset:1px}[hidden]{display:none!important}.topbar{border-bottom:1px solid var(--line)}.topbar-inner{max-width:1200px;min-height:82px;margin:auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between}.brand{font-size:25px;font-weight:650;letter-spacing:.3px}.header-new{display:none!important}main{max-width:1200px;margin:auto;padding:30px 32px 48px}h1,h2,h3,p{margin:0}h1{font-size:22px;font-weight:600}h2{font-size:18px;font-weight:600}.count{font-size:13px;color:var(--subtle);font-weight:400;margin-left:7px}.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;padding:7px 15px;background:#fff;border:1px solid var(--line);border-radius:5px;white-space:nowrap;color:var(--ink)}.button:hover{background:var(--soft);border-color:#c4cfdd}.primary{background:var(--accent);border-color:var(--accent);color:#fff}.primary:hover{background:#172d47;border-color:#172d47}.button>span[aria-hidden]{font-size:20px;line-height:1}.icon-button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:36px;height:36px;border:0;background:transparent;color:var(--muted);border-radius:5px;font-size:24px}.icon-button:hover{background:var(--soft)}.icon-button svg{width:20px;height:20px}.danger{color:var(--red)}.destructive{background:var(--red);border-color:var(--red);color:white}.destructive:hover{background:#98333b}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.home-tools{display:flex;align-items:center;gap:12px}.search{position:relative;display:flex;align-items:center}.search svg{position:absolute;left:11px;width:16px;height:16px;color:var(--subtle)}.search input{width:166px;border:1px solid var(--line);border-radius:5px;min-height:38px;padding:7px 10px 7px 34px;color:var(--ink);background:#fff;font-size:13px}.search input::placeholder{color:var(--subtle)}.entry-table{width:100%;table-layout:fixed;border-spacing:0;border:1px solid var(--line);border-radius:6px;overflow:hidden}.entry-table th{text-align:left;font-weight:400;color:var(--muted);background:var(--soft);font-size:13px;height:46px;padding:10px 18px}.entry-table th:nth-child(1){width:29%}.entry-table th:nth-child(2){width:34%}.entry-table th:nth-child(3){width:21%}.entry-table th:nth-child(4){width:16%;text-align:right}.entry-table td{height:69px;padding:13px 18px;border-top:1px solid var(--line);vertical-align:middle}.entry-table tr:hover td{background:#fafbfd}.entry-name{font-size:16px;font-weight:550;display:flex;gap:15px;align-items:center;min-width:0}.entry-name>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.folder{width:29px;height:28px;flex-shrink:0;stroke:none;fill:currentColor;color:#499cf3}.folder.color-1{color:#63b784}.folder.color-2{color:#e9af35}.folder.color-3{color:#ed7476}.folder.color-4{color:#9671df}.folder.color-empty{color:#a1aab5}.folder .folder-back{opacity:.78}.folder .folder-front{opacity:1}.entry-summary,.entry-activity{color:var(--muted);font-size:14px}.entry-details{display:block;color:var(--subtle);font-size:12px;margin-top:2px}.entry-actions{text-align:right;white-space:nowrap}.entry-actions .button{min-height:32px;padding:4px 17px;background:var(--soft);font-size:13px;color:var(--muted)}.entry-actions .icon-button{font-size:20px;width:28px;height:32px;margin-left:7px}.mobile-arrow,.mobile-summary{display:none}.home-foot{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;margin-top:22px;padding-top:19px;border-top:1px solid #d8e0e9;font-size:12px;color:var(--muted)}.home-foot p{display:flex;gap:9px;align-items:center}.home-foot p>span[aria-hidden]{font-size:19px;line-height:1}.retention-note{color:var(--subtle);flex-shrink:0}.loading,.empty{padding:64px 20px;text-align:center;grid-column:1/-1;color:var(--muted)}.empty h1,.empty h3{font-size:18px;color:var(--ink);font-weight:500}.empty p{margin:9px 0 20px}.empty-symbol{display:block;color:var(--subtle);font-size:32px;margin-bottom:10px}.back{border:0;padding:0;background:none;color:var(--muted);font-size:13px;margin-bottom:23px;min-height:24px}.back:hover{color:var(--ink)}.room-heading{display:flex;justify-content:space-between;align-items:center;gap:20px}.room-heading-name{display:flex;gap:15px;align-items:center;min-width:0}.room-heading-name>div{min-width:0}.room-heading-name .folder{width:34px;height:34px}.room-heading h1{overflow-wrap:anywhere}.room-meta{display:flex;gap:13px;font-size:12px;color:var(--muted);margin-top:5px}.room-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}.room-notice{color:var(--subtle);font-size:12px;margin:18px 0 24px;padding-bottom:20px;border-bottom:1px solid var(--line)}.compose-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.upload-box,.text-box{min-width:0;min-height:235px;border:1px solid var(--line);border-radius:6px;background:#fff}.upload-box{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:23px 18px;cursor:pointer;border-style:dashed}.upload-box:hover,.upload-box.drag{border-color:var(--blue);background:#f7faff}.upload-symbol{width:28px;height:28px;color:var(--muted);margin-bottom:9px}.upload-box h2{font-size:15px}.upload-box p{font-size:12px;color:var(--muted);margin:5px 0 12px}.upload-box .button{min-height:32px;font-size:13px;padding:4px 16px}.upload-box small{font-size:11px;color:var(--subtle);margin-top:10px}.text-box{padding:18px;display:flex;flex-direction:column}.compose-label{font-size:15px;font-weight:550;margin-bottom:10px}.text-box textarea{display:block;width:100%;flex:1;min-height:110px;resize:vertical;border:0;padding:0 1px;background:transparent;color:var(--ink);line-height:1.65}.text-box textarea::placeholder{color:var(--subtle)}.text-footer{display:flex;justify-content:space-between;align-items:center;margin-top:14px;gap:10px}.text-footer>span{color:var(--subtle);font-size:11px}.text-footer .button{font-size:13px;min-height:32px;padding:5px 13px}.content-heading{margin-top:32px;margin-bottom:18px}.content-heading p{font-size:11px;color:var(--subtle);margin-top:3px}.filters{display:flex;gap:4px}.filters button{background:none;border:0;padding:6px 12px;color:var(--muted);font-size:13px;border-radius:4px;min-height:34px}.filters button.active{background:#eaf0f7;color:var(--accent);font-weight:550}.filters button:hover{background:var(--soft)}.items-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.item-card{border:1px solid var(--line);border-radius:6px;overflow:hidden;min-width:0;background:#fff}.item-preview{display:flex;align-items:center;justify-content:center;width:100%;height:170px;border:0;padding:0;background:var(--soft)}button.item-preview{cursor:zoom-in}.item-preview img{width:100%;height:100%;object-fit:cover}.item-preview video{width:100%;height:100%;object-fit:contain;background:#182333}.file-symbol{font-size:46px;color:#7d8da5}.text-preview{height:170px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:16px;background:#f7f9fc;color:#34445b;font-size:13px;line-height:1.75}.item-info{padding:14px}.item-info>strong{display:block;font-size:13px;font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-sub{font-size:11px;color:var(--subtle);line-height:1.9;margin-top:5px}.item-expiry{color:var(--muted)}.item-actions{display:flex;gap:12px;align-items:center;margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}.item-actions a,.item-actions button{background:none;border:0;padding:2px 0;font-size:12px;color:#346ba9}.item-actions .delete{margin-left:auto;color:var(--subtle)}.item-actions .delete:hover{color:var(--red)}.room-foot{border-top:1px solid var(--line);padding-top:18px;margin-top:28px;font-size:11px;color:var(--subtle)}#upload-queue{padding:15px 18px;margin-top:16px;border:1px solid var(--line);border-radius:5px}#upload-queue>div+div{margin-top:12px}.upload-row{display:flex;justify-content:space-between;gap:12px;font-size:12px}.upload-row>span{overflow-wrap:anywhere}.upload-row small{color:var(--muted);flex-shrink:0}.upload-progress{width:100%;height:4px;display:block;appearance:none;border:0;margin-top:6px}.upload-progress::-webkit-progress-bar{background:var(--line);border-radius:3px}.upload-progress::-webkit-progress-value{background:var(--blue);border-radius:3px}.upload-progress::-moz-progress-bar{background:var(--blue)}dialog{border:1px solid var(--line);border-radius:9px;padding:26px;width:calc(100% - 32px);max-width:420px;color:var(--ink);background:white;box-shadow:0 20px 80px #12203924}dialog::backdrop{background:#17263d55}dialog h2{font-size:19px}dialog p{color:var(--muted);font-size:13px;margin:10px 0 22px}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.dialog-top .icon-button{margin:-8px -8px -8px 0}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}#create-form>label{display:block;font-size:12px;margin-bottom:7px}#room-name{width:100%;height:42px;padding:9px 11px;border:1px solid #ced7e2;border-radius:4px;color:var(--ink)}#create-form .notice{font-size:11px;color:var(--subtle);margin:12px 0 0}.menu-options{display:grid;gap:10px;margin-top:20px}#preview-dialog{max-width:1000px;padding:16px}.preview-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.preview-head strong{font-size:13px;overflow-wrap:anywhere}#preview-content img{display:block;max-width:100%;max-height:75vh;margin:auto;object-fit:contain}#toast{position:fixed;z-index:100;bottom:calc(30px + env(safe-area-inset-bottom));left:50%;transform:translate(-50%,12px);max-width:calc(100vw - 36px);padding:10px 18px;background:#24354b;color:white;border-radius:6px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .15s,transform .15s;box-shadow:0 3px 12px #14243c22}#toast.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1500px){main{padding-top:38px}}
@media(max-width:900px) and (min-width:641px){.topbar-inner{padding:0 24px}main{padding:26px 24px}.entry-table th,.entry-table td{padding-left:12px;padding-right:12px}.entry-table th:nth-child(2){width:29%}.entry-table th:nth-child(3){width:22%}.entry-table th:nth-child(4){width:20%}.entry-name{gap:10px;font-size:15px}.entry-activity{font-size:12px}.home-foot{flex-direction:column;gap:9px}.items-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){body{font-size:14px}.topbar-inner{min-height:74px;padding:0 20px}.brand{font-size:21px}.header-new{display:inline-flex!important;border:0;color:#294b72;padding:7px 0;background:none;font-size:13px;min-height:40px}.header-new>span{color:#3992ee}main{padding:22px 18px calc(30px + env(safe-area-inset-bottom))}h1{font-size:18px}.count{font-size:11px;margin-left:4px}.home-heading{gap:12px;margin-bottom:17px}.home-tools>#new-hero{display:none}.search input{width:125px;min-height:32px;font-size:12px;border-color:transparent;background:#f6f8fa;padding-left:29px}.search svg{left:9px;width:14px;height:14px}.entry-table,.entry-table tbody{display:block;width:100%;border:0;overflow:visible}.entry-table thead{display:none}.entry-table tbody{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.entry-table tr{display:block;position:relative;min-width:0;border:1px solid var(--line);border-radius:5px;background:#fff}.entry-table td{display:none}.entry-table td:first-child{display:block;height:auto;padding:0;border:0}.entry-table tr:hover td{background:transparent}.entry-name{position:relative;display:block;padding:17px 14px 38px;min-height:123px;font-size:14px;font-weight:550;line-height:1.45}.entry-name .folder{width:29px;height:29px;margin-bottom:10px}.entry-name>span:last-child{display:block;padding-right:2px}.mobile-arrow{display:block;position:absolute;right:14px;top:21px;color:var(--muted);font-size:21px;font-weight:400}.mobile-summary{display:block;position:absolute;left:14px;right:10px;bottom:14px;pointer-events:none;font-size:12px;font-weight:400;color:var(--subtle);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.home-foot{margin-top:62px;padding-top:17px;display:block;border-top:1px solid var(--line)}#recent-activity{display:none}.home-foot .retention-note{font-size:10px;gap:7px;line-height:1.65}.home-foot p>span[aria-hidden]{font-size:16px}.back{margin-bottom:17px;font-size:12px}.room-heading{align-items:flex-start;gap:12px;flex-wrap:wrap}.room-heading-name{gap:10px;flex:1;min-width:100%}.room-heading-name .folder{width:29px;height:29px}.room-heading h1{font-size:20px}.room-actions{margin-left:39px;gap:8px}.room-actions .button{min-height:33px;padding:5px 10px;font-size:12px}.room-actions .icon-button{width:33px;height:33px}.room-meta{font-size:11px;gap:10px}.room-notice{font-size:11px;margin:13px 0 18px;padding-bottom:15px}.compose-grid{grid-template-columns:1fr;gap:12px}.upload-box{min-height:128px;display:grid;grid-template-columns:32px 1fr auto;grid-template-rows:auto auto auto;gap:3px 11px;text-align:left;padding:17px 14px}.upload-symbol{grid-column:1;grid-row:1/4;width:26px;height:26px;margin:0;align-self:center}.upload-box h2{grid-column:2;grid-row:1;font-size:14px}.upload-box p{grid-column:2;grid-row:2;font-size:10px;margin:0}.upload-box .button{grid-column:3;grid-row:1/3;align-self:center;font-size:11px;padding:5px 8px}.upload-box small{grid-column:2/4;grid-row:3;font-size:10px;margin:4px 0 0}.desktop-only{display:none}.text-box{min-height:195px;padding:15px}.compose-label{font-size:14px}.text-box textarea{font-size:16px;min-height:88px}.text-footer{margin-top:12px}.text-footer .button{min-height:36px}.content-heading{margin-top:26px;align-items:flex-start;flex-direction:column;gap:12px;margin-bottom:14px}.content-heading>div:first-child{display:flex;width:100%;align-items:baseline;justify-content:space-between;gap:10px}.content-heading h2{font-size:16px}.content-heading p{font-size:10px}.filters{width:100%;gap:5px}.filters button{flex:1;padding:6px 4px;font-size:12px;min-height:35px}.items-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.item-preview,.text-preview{height:131px}.text-preview{font-size:12px;padding:12px}.item-info{padding:11px}.item-info>strong{font-size:12px}.item-sub{font-size:10px}.item-actions{flex-wrap:wrap;gap:8px;margin-top:7px;padding-top:7px}.item-actions a,.item-actions button{font-size:11px;min-height:28px}.item-actions .delete{margin-left:auto}.room-foot{font-size:10px;margin-top:24px}.empty{padding:50px 10px}.empty p{font-size:12px}.empty h3{font-size:16px}dialog{padding:22px;max-width:390px}#room-name{font-size:16px}#toast{font-size:12px;text-align:center;min-width:180px}}
@media(max-width:360px){.topbar-inner{padding:0 16px}main{padding-left:14px;padding-right:14px}.entry-name{padding-left:12px;padding-right:12px}.mobile-summary{left:12px}.upload-box{grid-template-columns:1fr auto;gap:4px 8px}.upload-symbol{display:none}.upload-box h2,.upload-box p{grid-column:1}.upload-box .button{grid-column:2}.upload-box small{grid-column:1/3}.items-grid{grid-template-columns:1fr}.item-preview,.text-preview{height:180px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* Keep the native selection available on iOS and in embedded browsers. */
.clipboard-buffer{position:fixed;top:0;left:0;width:2px;height:2px;padding:0;border:0;opacity:.01;font-size:16px;pointer-events:none;white-space:pre-wrap;-webkit-user-select:text;user-select:text}
#copy-content{display:block;width:100%;min-height:180px;max-height:45vh;resize:vertical;border:1px solid var(--line);border-radius:5px;padding:12px;color:var(--ink);background:#f7f9fc;font-size:16px;line-height:1.65;-webkit-user-select:text;user-select:text}
.text-preview{-webkit-user-select:text;user-select:text}
/* Spacious touch targets, quiet card headers, and file selection. */
.paste-hint{font-size:11px;color:var(--muted);margin-top:9px}
.upload-box .paste-hint+small{margin-top:5px}
.item-card-head{display:flex;align-items:center;gap:4px;padding-left:13px;min-height:44px;border-bottom:1px solid var(--line)}
.item-kind{font-size:11px;color:var(--muted);margin-right:auto}
.item-more{width:44px;height:44px;border-radius:0;font-size:24px}
.file-check{display:flex;align-items:center;justify-content:center;gap:5px;min-height:44px;padding:0 5px;cursor:pointer;font-size:11px;color:var(--muted)}
.file-check input{width:18px;height:18px;margin:0;accent-color:var(--accent);cursor:pointer}
.item-card.selected{border-color:#4a78ac;box-shadow:0 0 0 1px #4a78ac}
.item-card.selected .item-card-head{background:#f0f5fb}
.item-actions{gap:8px;flex-wrap:nowrap}
.item-actions a,.item-actions button{display:flex;align-items:center;justify-content:center;flex:1;min-height:44px;padding:7px 4px;border:1px solid var(--line);border-radius:4px;background:#f8fafc;font-size:12px}
.item-actions a:hover,.item-actions button:hover{background:#edf3fa;border-color:#c4cfdd}
.file-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 14px}
.file-tools>span{font-size:11px;color:var(--subtle)}
.file-tools>div{display:flex;gap:8px}
.file-tools .button,.batch-toolbar .button{font-size:12px;min-height:40px;padding:7px 12px}
.batch-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:10px 12px;background:#f2f6fb;border:1px solid #dbe4ef;border-radius:5px;margin-bottom:14px}
.batch-toolbar strong{font-size:12px;font-weight:500;margin-right:auto}
button:disabled{opacity:.45;cursor:default}
#item-menu-title{font-size:16px;overflow-wrap:anywhere}
#item-menu-dialog .button{min-height:44px}
@media(max-width:640px){
 .item-card-head{padding-left:10px}.item-actions{gap:5px}.item-actions a,.item-actions button{font-size:11px;min-height:44px;padding:6px 2px}
 .file-tools{flex-wrap:wrap;gap:7px}.file-tools>span{order:2;font-size:10px}.file-tools>div{width:100%}.file-tools .button{flex:1;min-height:44px}
 .batch-toolbar{padding:9px;gap:6px}.batch-toolbar strong{flex-basis:calc(100% - 70px)}.batch-toolbar .button{min-height:44px;padding:6px 8px}
 #cancel-selection{order:-1;margin-left:auto}#selection-count{order:-2}#select-visible,#download-selected{flex:1}
 .room-actions .button,.room-actions .icon-button,.text-footer .button,.upload-box .button{min-height:44px}.room-actions .icon-button{width:44px}
 .filters button{min-height:44px}
}