:root{--bg: #faf3e3;--surface: #fffdf8;--surface-warm: #fff8ea;--surface-raised: #ffffff;--ink: #40301d;--ink-soft: #6d5639;--muted: #9a8467;--line: #efdfbd;--line-strong: #e4cd9d;--primary: #f5a623;--primary-strong: #e08e0b;--primary-soft: #fdf0d2;--primary-ink: #4a2f08;--accent: #3f7fd9;--accent-soft: #eaf2fd;--danger: #c2453f;--danger-soft: #fdefee;--success: #38875c;--success-soft: #eaf6ef;--radius-sm: 10px;--radius-md: 14px;--radius-lg: 20px;--shadow-sm: 0 1px 2px rgba(96, 66, 24, .05), 0 3px 10px rgba(96, 66, 24, .06);--shadow-md: 0 4px 10px rgba(96, 66, 24, .07), 0 14px 36px rgba(96, 66, 24, .12);--shadow-lg: 0 10px 24px rgba(96, 66, 24, .1), 0 28px 70px rgba(96, 66, 24, .16);--ring: 0 0 0 3px rgba(63, 127, 217, .28);color:var(--ink);background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(1100px 500px at 85% -10%,rgba(255,214,140,.28),transparent 70%),radial-gradient(900px 480px at -10% 100%,rgba(173,210,255,.2),transparent 70%),var(--bg);background-attachment:fixed}h1,h2{margin:0;font-weight:800;letter-spacing:-.01em}button,input{font:inherit;color:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible{outline:none;box-shadow:var(--ring)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:38px;padding:0 16px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:650;white-space:nowrap;transition:background-color .14s ease,border-color .14s ease,box-shadow .14s ease,transform 80ms ease}.btn:active{transform:translateY(1px)}.btn-lg{min-height:48px;padding:0 20px;font-size:1.02rem}.btn-sm{min-height:31px;padding:0 11px;font-size:.86rem;gap:5px}.btn-icon{width:31px;padding:0}.btn-primary{border-color:var(--primary-strong);background:linear-gradient(180deg,#ffcf62,var(--primary));color:var(--primary-ink);font-weight:750;box-shadow:0 1px #ffffff80 inset,var(--shadow-sm)}.btn-primary:hover{background:linear-gradient(180deg,#ffd97e,#f8b03a);box-shadow:0 1px #ffffff80 inset,var(--shadow-md)}.btn-soft{border-color:var(--line-strong);background:var(--surface-raised);color:var(--ink-soft)}.btn-soft:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--ink)}.btn-ghost{background:transparent;color:var(--ink-soft)}.btn-ghost:hover{background:var(--primary-soft);color:var(--ink)}.btn-danger{border-color:#dd9f9c;background:var(--danger-soft);color:var(--danger)}.btn-danger:hover{border-color:var(--danger);background:#fbe1df}input[type=text],input[type=password],input:not([type]){min-height:42px;padding:0 13px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface-raised);color:var(--ink);transition:border-color .14s ease,box-shadow .14s ease}input::placeholder{color:var(--muted)}input[type=text]:focus-visible,input[type=password]:focus-visible,input:not([type]):focus-visible{border-color:var(--accent)}input[type=checkbox]{flex:0 0 auto;width:16px;height:16px;margin:0;accent-color:var(--primary-strong);cursor:pointer}.eyebrow{margin:0 0 4px;color:var(--primary-strong);font-size:.78rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.form-error{margin:0;color:var(--danger);font-size:.9rem;font-weight:600}.brand-badge{width:44px;height:44px;border:1px solid var(--line-strong);border-radius:12px;object-fit:cover;background:var(--surface-warm);box-shadow:var(--shadow-sm)}.brand-badge-lg{width:64px;height:64px;border-radius:16px}.screen-center{min-height:100vh;display:flex;align-items:center;justify-content:center;gap:10px;padding:24px;color:var(--ink-soft);font-weight:650}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:min(420px,100%);padding:40px 36px 36px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-lg);text-align:center}.login-card .eyebrow{margin-top:18px}.login-card h1{font-size:1.9rem}.login-copy{margin:10px 0 26px;color:var(--muted);line-height:1.7}.preview-note{margin:-8px 0 20px;padding:9px 12px;border:1px dashed #a9c9f2;border-radius:var(--radius-sm);background:var(--accent-soft);color:#2b64b4;font-size:.88rem;font-weight:600}.login-form{display:grid;gap:12px;text-align:left}.login-form label{color:var(--ink-soft);font-size:.92rem;font-weight:700}.login-form input{min-height:46px}.app-shell{display:grid;grid-template-columns:276px minmax(0,1fr);gap:16px;min-height:100vh;padding:16px}.sidebar,.workspace{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm)}.sidebar{display:flex;flex-direction:column;gap:18px;min-height:calc(100vh - 32px);padding:22px 18px 18px;background:linear-gradient(180deg,var(--surface) 0%,var(--surface-warm) 100%)}.brand-row{display:flex;align-items:center;gap:12px;padding:0 4px}.brand-row div{display:grid;gap:1px;min-width:0}.brand-row strong{font-size:1.12rem;font-weight:800}.brand-row span{color:var(--muted);font-size:.8rem;font-weight:600}.upload-button{width:100%}.side-nav{display:grid;gap:4px}.side-nav button{display:flex;align-items:center;gap:10px;min-height:40px;padding:0 12px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--ink-soft);font-weight:650;text-align:left;transition:background-color .14s ease,color .14s ease}.side-nav button svg{color:var(--muted);transition:color .14s ease}.side-nav button:hover{background:var(--primary-soft);color:var(--ink)}.side-nav button.active{background:var(--primary-soft);color:var(--primary-ink)}.side-nav button.active svg,.side-nav button:hover svg{color:var(--primary-strong)}.sidebar-art{margin-top:auto;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;max-height:clamp(220px,34vh,400px)}.sidebar-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center bottom}.logout-button{display:flex;align-items:center;gap:9px;min-height:40px;padding:0 12px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--muted);font-weight:650;transition:background-color .14s ease,color .14s ease}.logout-button:hover{background:var(--danger-soft);color:var(--danger)}.workspace{position:relative;min-width:0;min-height:calc(100vh - 32px);padding:28px 30px 34px}.workspace.drag-active{border-color:var(--accent);box-shadow:0 0 0 3px #3f7fd933,var(--shadow-sm)}.topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}.topbar h1{font-size:1.7rem}.search-box{display:flex;align-items:center;gap:10px;width:min(340px,100%);min-height:42px;padding:0 14px;border:1px solid var(--line-strong);border-radius:999px;background:var(--surface-raised);color:var(--muted);transition:border-color .14s ease,box-shadow .14s ease}.search-box:focus-within{border-color:var(--accent);box-shadow:var(--ring)}.search-box input{width:100%;min-width:0;min-height:0;border:0;padding:0;background:transparent;color:var(--ink)}.search-box input:focus-visible{box-shadow:none}.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin:18px 0 10px}.breadcrumbs button{display:inline-flex;align-items:center;gap:4px;padding:5px 8px;border:0;border-radius:7px;background:transparent;color:var(--ink-soft);font-weight:650;font-size:.9rem}.breadcrumbs button svg{color:var(--muted)}.breadcrumbs button:hover{background:var(--accent-soft);color:var(--accent)}.breadcrumbs button:last-child{color:var(--ink)}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:36px;margin-bottom:12px}.toolbar-status{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem;font-weight:600}.file-table{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-raised);box-shadow:var(--shadow-sm);overflow:visible}.table-head,.table-row{display:grid;grid-template-columns:minmax(220px,1.6fr) 92px minmax(120px,.8fr) 150px 236px;gap:14px;align-items:center;padding:0 18px}.table-head{min-height:42px;border-bottom:1px solid var(--line);color:var(--muted);font-size:.78rem;font-weight:750;letter-spacing:.05em;text-transform:uppercase}.head-actions{text-align:right}.table-row{min-height:56px;padding-block:8px;border-top:1px solid #f6eeda;color:var(--ink-soft);font-size:.92rem;transition:background-color .12s ease}.table-row:first-of-type,.table-head+.table-row{border-top:0}.table-row:hover{background:var(--surface-warm)}.table-row:last-child{border-radius:0 0 var(--radius-md) var(--radius-md)}.table-row>span{min-width:0;overflow-wrap:anywhere}.cell-name{display:flex;align-items:center;gap:11px;min-width:0}.cell-dim{color:var(--muted)}.row-icon{display:grid;place-items:center;flex:0 0 auto;width:32px;height:32px;border-radius:9px;background:var(--accent-soft);color:var(--accent)}.row-icon-folder{background:var(--primary-soft);color:var(--primary-strong)}.file-name,.name-button{min-width:0;overflow-wrap:anywhere;color:var(--ink);font-weight:650}.name-button{display:flex;align-items:center;gap:11px;padding:0;border:0;background:transparent;text-align:left}.name-button:hover{color:var(--accent)}.chip{display:inline-block;max-width:100%;padding:3px 9px;border-radius:999px;background:#f4ede0;color:var(--ink-soft);font-size:.76rem;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle}.chip-folder{background:var(--primary-soft);color:var(--primary-strong)}.row-actions{display:flex;justify-content:flex-end;align-items:center;gap:6px}.empty-state{display:grid;place-items:center;gap:18px;padding:56px 24px 64px;text-align:center}.empty-illustration{display:block;width:min(440px,100%);max-height:220px;object-fit:contain}.empty-copy{display:grid;gap:6px;max-width:440px}.empty-copy strong{color:var(--ink);font-size:1.08rem;font-weight:750}.empty-copy span{color:var(--muted);line-height:1.6}.menu{position:relative;display:inline-flex}.menu-list{position:absolute;top:calc(100% + 6px);right:0;z-index:30;display:grid;gap:2px;min-width:168px;padding:6px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-raised);box-shadow:var(--shadow-md);animation:pop-in .12s ease}.menu-list-left{right:auto;left:0}.menu-item{display:flex;align-items:center;gap:9px;min-height:34px;padding:0 10px;border:0;border-radius:8px;background:transparent;color:var(--ink-soft);font-size:.9rem;font-weight:600;text-align:left}.menu-item svg{color:var(--muted)}.menu-item:hover{background:var(--primary-soft);color:var(--ink)}.menu-item-danger,.menu-item-danger svg{color:var(--danger)}.menu-item-danger:hover{background:var(--danger-soft);color:var(--danger)}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:24px;background:#40301d59;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:fade-in .14s ease}.dialog{width:min(400px,100%);padding:20px 22px 22px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-lg);animation:pop-in .16s ease}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.dialog-header h2{font-size:1.1rem}.dialog-close{display:grid;place-items:center;width:30px;height:30px;border:0;border-radius:8px;background:transparent;color:var(--muted)}.dialog-close:hover{background:var(--primary-soft);color:var(--ink)}.dialog-body{margin:0;color:var(--ink-soft);line-height:1.65;overflow-wrap:anywhere}.dialog-hint{margin:10px 0 0;color:var(--muted);font-size:.84rem}.dialog .field{display:grid;gap:8px}.dialog .field span{color:var(--ink-soft);font-size:.92rem;font-weight:700}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.toast-stack{position:fixed;bottom:22px;left:50%;z-index:60;display:grid;gap:8px;justify-items:center;transform:translate(-50%);pointer-events:none}.toast{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface-raised);color:var(--ink);font-size:.9rem;font-weight:650;box-shadow:var(--shadow-md);animation:toast-in .18s ease}.toast-success svg{color:var(--success)}.toast-error{border-color:#e7b6b3;background:var(--danger-soft);color:var(--danger)}.toast-error svg{color:var(--danger)}.upload-queue{margin-top:16px;padding:16px 18px 8px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-raised);box-shadow:var(--shadow-sm)}.upload-queue>header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;color:var(--ink)}.upload-queue>header span{color:var(--muted);font-size:.86rem;font-weight:600}.queue-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid #f6eeda}.queue-row:first-of-type{border-top:0}.queue-main{flex:1;min-width:0}.queue-title{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.queue-title span:first-child{min-width:0;overflow-wrap:anywhere;font-weight:650}.queue-title span:last-child{flex:0 0 auto;color:var(--muted);font-size:.84rem}.progress-track{height:6px;margin-top:7px;border-radius:999px;background:#f1e8d5;overflow:hidden}.progress-track span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#ffcf62,var(--primary-strong));transition:width .2s ease}.queue-main small{color:var(--danger);font-weight:600}.success-icon{color:var(--success)}.danger-icon{color:var(--danger)}.dropzone-overlay{position:absolute;top:10px;right:10px;bottom:10px;left:10px;z-index:40;display:grid;place-items:center;align-content:center;gap:12px;border:2px dashed var(--accent);border-radius:var(--radius-md);background:#eaf2fdeb;color:var(--accent);font-size:1.05rem;pointer-events:none;animation:fade-in .12s ease}.spin{animation:spin .9s linear infinite}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-in{0%{opacity:0}}@keyframes pop-in{0%{opacity:0;transform:translateY(-4px) scale(.98)}}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}}@media(max-width:1180px){.app-shell{grid-template-columns:248px minmax(0,1fr)}.workspace{padding:22px}.topbar{flex-direction:column;align-items:stretch;gap:14px}.search-box{width:100%}}@media(max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar,.workspace{min-height:auto}.sidebar-art{display:none}.side-nav{grid-template-columns:repeat(3,minmax(0,1fr))}.side-nav button,.logout-button{justify-content:center;text-align:center}.file-table{overflow-x:auto}.table-head,.table-row{min-width:860px}}@media(max-width:620px){.app-shell{padding:10px;gap:10px}.sidebar{padding:16px 14px}.workspace{padding:18px 16px 24px}.side-nav{grid-template-columns:1fr}.topbar h1{font-size:1.4rem}.login-card{padding:30px 22px 26px}.empty-state{padding:36px 14px 44px}.empty-illustration{max-height:180px}}