:root{color-scheme:light;--ink:#17202a;--muted:#667085;--glass:rgba(255,255,255,0.72);--line:rgba(23,32,42,0.12);--accent:#0f8b8d;--danger:#b42318}*{box-sizing:border-box}body,html{width:100%;height:100%;min-width:320px;min-height:100%;background:#07111f;overscroll-behavior:none}body{margin:0;font-family:Arial,Microsoft YaHei,sans-serif;color:var(--ink);overflow:hidden}button,input,textarea{font:inherit}button{cursor:pointer}.file-input{position:fixed;width:1px;height:1px;opacity:0;pointer-events:none}.desktop{--menu-height:clamp(40px,5.4dvh,46px);--viewport-pad:clamp(8px,1.6vmin,22px);--workspace-top:calc(var(--menu-height) + clamp(42px, 7dvh, 56px));--dock-button:clamp(36px,5.4vmin,40px);--dock-pad:clamp(5px,0.9vmin,7px);--dock-space:calc(var(--dock-button) + (var(--dock-pad) * 2) + clamp(16px, 2.4dvh, 24px));--item-track:clamp(84px,calc(9vmin + 22px),124px);--item-row:clamp(124px,18dvh,156px);--item-gap:clamp(6px,1.2vmin,12px);position:fixed;left:var(--visual-viewport-left,0);top:var(--visual-viewport-top,0);width:var(--visual-viewport-width,100%);height:var(--visual-viewport-height,100%);min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden;padding:var(--workspace-top) var(--viewport-pad) var(--dock-space);background-color:#eaf1f0}.wallpaper-soft{background-image:linear-gradient(135deg,rgba(11,131,135,.24),rgba(244,179,80,.2)),linear-gradient(180deg,#eef7f7,#f7f4ed 52%,#eaf1f0)}.wallpaper-macos{--ink:#f7fbff;--muted:rgba(235,245,255,0.78);--glass:rgba(12,18,32,0.5);--line:rgba(255,255,255,0.2);--accent:#7dd3fc;color:var(--ink);background-color:#07111f;background-image:linear-gradient(180deg,rgba(4,10,24,.1),rgba(4,10,24,.36)),-webkit-image-set(url("/wallpapers/macos-tahoe-dark.webp") type("image/webp"),url("/wallpapers/macos-tahoe-dark.jpg") type("image/jpeg"));background-image:linear-gradient(180deg,rgba(4,10,24,.1),rgba(4,10,24,.36)),image-set(url("/wallpapers/macos-tahoe-dark.webp") type("image/webp"),url("/wallpapers/macos-tahoe-dark.jpg") type("image/jpeg"));background-size:cover;background-position:50%;background-attachment:scroll}.menu-bar{position:absolute;top:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:var(--menu-height);height:var(--menu-height);padding:0 var(--viewport-pad);background:rgba(255,255,255,.76);border-bottom:1px solid var(--line);color:var(--ink);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.wallpaper-macos .menu-bar{background:rgba(9,14,28,.48);border-bottom-color:rgba(255,255,255,.16);box-shadow:0 1px 18px rgba(0,0,0,.16)}.brand{display:inline-flex;align-items:center;gap:9px;min-width:0;font-weight:700}.brand img{width:28px;height:28px;flex:0 0 auto;border-radius:8px;box-shadow:0 1px 5px rgba(16,24,40,.2)}.brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wallpaper-macos .brand{color:#ffffff;text-shadow:0 1px 5px rgba(0,0,0,.45)}.wallpaper-macos .brand img{box-shadow:0 1px 8px rgba(0,0,0,.42)}.segmented{display:flex;gap:4px;padding:3px;background:rgba(255,255,255,.68);border:1px solid var(--line);border-radius:8px}.wallpaper-macos .segmented,.wallpaper-macos .wallpaper-switch{background:rgba(12,18,32,.42);border-color:rgba(255,255,255,.18)}.wallpaper-switch{position:absolute;top:calc(var(--menu-height) + clamp(8px, 1.4dvh, 12px));right:var(--viewport-pad);z-index:18;display:flex;gap:4px;padding:4px;border:1px solid rgba(255,255,255,.42);border-radius:8px;background:rgba(255,255,255,.58);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.wallpaper-switch button{min-width:48px;border:0;border-radius:6px;padding:6px 9px;background:transparent;color:var(--ink)}.wallpaper-switch .active{background:white;box-shadow:0 1px 5px rgba(16,24,40,.12)}.wallpaper-macos .segmented .active,.wallpaper-macos .wallpaper-switch .active{background:rgba(255,255,255,.18);color:#ffffff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}.dock button,.item-actions a,.item-actions button,.segmented button,.user-area button{border:0;background:transparent;color:var(--ink)}.segmented button{min-width:48px;padding:5px 10px;border-radius:6px}.segmented .active{background:#ffffff;box-shadow:0 1px 5px rgba(16,24,40,.12)}.user-area{justify-self:end;display:flex;align-items:center;gap:10px;color:var(--muted)}.user-area button{width:32px;height:32px;border-radius:50%;display:grid;place-items:center}.takeover,.toast{max-width:760px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--glass)}.drop-zone,.takeover,.toast{margin:0 auto;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.drop-zone{width:min(760px,100%);min-height:clamp(46px,8dvh,58px);display:grid;grid-template-columns:auto 1fr;column-gap:10px;row-gap:2px;align-items:center;padding:clamp(8px,1.4vmin,10px) clamp(12px,2vmin,14px);border:1px dashed rgba(15,139,141,.55);border-radius:8px;background:rgba(255,255,255,.66);color:var(--ink);text-align:left;cursor:pointer}.wallpaper-macos .drop-zone,.wallpaper-macos .takeover,.wallpaper-macos .toast{background:rgba(8,14,28,.66);border-color:rgba(255,255,255,.22);color:#ffffff;box-shadow:0 14px 34px rgba(0,0,0,.18)}.drop-zone svg{grid-row:1/3;color:var(--accent)}.drop-zone span{font-weight:700}.drop-zone small{color:var(--muted)}.dock label.disabled,.drop-zone.disabled{cursor:not-allowed;opacity:.45}.takeover{display:flex;justify-content:space-between;gap:12px;align-items:center}.dialog-actions button,.takeover button{border:0;border-radius:7px;padding:8px 12px;color:white;background:var(--accent)}.toast{position:absolute;left:50%;top:calc(var(--menu-height) + clamp(8px, 1.4dvh, 12px));transform:translateX(-50%);z-index:30;width:max-content;max-width:min(420px,calc(100vw - 32px));text-align:center}.desktop-grid{flex:1 1 auto;min-height:0;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--item-track),var(--item-track)));grid-auto-rows:var(--item-row);gap:var(--item-gap);align-items:start;align-content:start;justify-content:start;padding:clamp(2px,.5vmin,6px);scrollbar-gutter:stable both-edges}.desktop-grid.is-empty{align-content:center;place-items:center}.folder-breadcrumb{width:min(760px,100%);min-height:42px;margin:0 auto;display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--glass);color:var(--ink);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.wallpaper-macos .folder-breadcrumb{background:rgba(8,14,28,.62);border-color:rgba(255,255,255,.2);color:#ffffff;box-shadow:0 14px 34px rgba(0,0,0,.16)}.folder-breadcrumb button{width:28px;height:28px;display:grid;place-items:center;border:0;border-radius:50%;background:rgba(255,255,255,.74);color:var(--ink)}.wallpaper-macos .folder-breadcrumb button{background:rgba(255,255,255,.16);color:#ffffff}.folder-breadcrumb span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}.folder-breadcrumb small{margin-left:auto;color:var(--accent);font-weight:700}.desktop-workspace{width:100%;min-width:0;min-height:0;flex:1 1 auto;display:flex;flex-direction:column;gap:clamp(8px,1.3vh,12px);margin:0 auto}.desktop-item{position:relative;height:100%;overflow:hidden;padding:clamp(7px,1.2vmin,10px) clamp(6px,1vmin,8px) clamp(7px,1.1vmin,9px);border:1px solid transparent;border-radius:8px;background:rgba(255,255,255,.46);text-align:center;-webkit-user-select:none;user-select:none}.wallpaper-macos .desktop-item{background:rgba(8,14,28,.42);color:#ffffff;text-shadow:0 1px 4px rgba(0,0,0,.7)}.desktop-item.selected,.desktop-item:hover{border-color:rgba(15,139,141,.38);background:rgba(255,255,255,.78)}.wallpaper-macos .desktop-item.selected,.wallpaper-macos .desktop-item:hover{border-color:rgba(125,211,252,.48);background:rgba(10,17,32,.62)}.item-icon{position:relative;width:clamp(38px,5.4vmin,44px);height:clamp(38px,5.4vmin,44px);margin:0 auto 6px;display:grid;place-items:center;color:white;background:linear-gradient(145deg,#0f8b8d,#4b6584);border-radius:8px;box-shadow:0 8px 18px rgba(16,24,40,.18)}.item-icon-badge{position:absolute;right:-5px;bottom:-4px;min-width:23px;max-width:32px;height:16px;display:grid;place-items:center;border-radius:4px;padding:0 4px;background:rgba(255,255,255,.94);color:#17202a;font-size:9px;font-weight:800;line-height:1;box-shadow:0 2px 6px rgba(16,24,40,.18)}.icon-pdf{background:linear-gradient(145deg,#ef4444,#b91c1c)}.icon-word{background:linear-gradient(145deg,#3b82f6,#1d4ed8)}.icon-excel{background:linear-gradient(145deg,#22c55e,#15803d)}.icon-ppt{background:linear-gradient(145deg,#f97316,#c2410c)}.icon-zip{background:linear-gradient(145deg,#f59e0b,#92400e)}.icon-html{background:linear-gradient(145deg,#f97316,#ea580c)}.icon-js{background:linear-gradient(145deg,#facc15,#ca8a04)}.icon-css,.icon-ts{background:linear-gradient(145deg,#38bdf8,#2563eb)}.icon-code{background:linear-gradient(145deg,#64748b,#0f172a)}.icon-python{background:linear-gradient(145deg,#3776ab 0 48%,#ffd43b 52% 100%)}.icon-tic{background:linear-gradient(145deg,#a855f7,#6d28d9)}.icon-image{background:linear-gradient(145deg,#06b6d4,#2563eb)}.icon-file,.icon-text{background:linear-gradient(145deg,#64748b,#334155)}.icon-link{background:linear-gradient(145deg,#0f8b8d,#2563eb)}.icon-folder{color:#5b3a0a;background:linear-gradient(145deg,#fde68a,#f59e0b)}.wallpaper-macos .item-icon{box-shadow:0 10px 24px rgba(0,0,0,.32)}.item-name{min-height:31px;display:-webkit-box;overflow-wrap:anywhere;overflow:hidden;font-weight:700;font-size:12px;line-height:1.18;-webkit-box-orient:vertical;-webkit-line-clamp:2}.item-meta{margin-top:3px;display:grid;gap:2px;color:var(--muted);font-size:11px}.item-expiry{color:var(--accent);font-weight:700}.text-preview{max-height:30px;overflow:hidden;margin:5px 0 0;color:var(--muted);font-size:11px;line-height:1.25;overflow-wrap:anywhere}.item-actions{position:absolute;right:6px;bottom:6px;display:flex;gap:4px}.item-actions a,.item-actions button{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.78)}.wallpaper-macos .item-actions a,.wallpaper-macos .item-actions button{background:rgba(255,255,255,.18);color:#ffffff}.empty{grid-column:1/-1;display:grid;place-content:center;text-align:center;color:var(--muted)}.empty strong{color:var(--ink);font-size:24px}.dock{position:absolute;left:50%;bottom:clamp(8px,1.8dvh,14px);transform:translateX(-50%);display:flex;gap:clamp(4px,.9vmin,6px);padding:var(--dock-pad);border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.72);box-shadow:0 12px 36px rgba(16,24,40,.18);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.wallpaper-macos .dock{background:rgba(10,17,32,.46);border-color:rgba(255,255,255,.2);box-shadow:0 18px 46px rgba(0,0,0,.32)}.dock button,.dock label{width:var(--dock-button);height:var(--dock-button);display:grid;place-items:center;border-radius:12px;background:white;cursor:pointer}.wallpaper-macos .dock button,.wallpaper-macos .dock label{background:rgba(255,255,255,.16);color:#ffffff}.dock button.danger{background:rgba(180,35,24,.9);color:#ffffff}.wallpaper-macos .dock button.danger{background:rgba(248,113,113,.28);color:#ffffff}.dock button:disabled{cursor:not-allowed;opacity:.45}.selection-marquee{position:absolute;z-index:35;border:1px solid rgba(125,211,252,.8);border-radius:8px;background:rgba(125,211,252,.18);box-shadow:0 0 0 1px rgba(15,139,141,.18);pointer-events:none}.modal{position:absolute;inset:0;z-index:40;display:grid;place-items:center;padding:20px;background:rgba(15,23,42,.28)}.panel{width:min(520px,100%);display:grid;gap:12px;padding:20px;border-radius:8px;background:white;box-shadow:0 24px 60px rgba(16,24,40,.24)}.panel h2{margin:0;font-size:20px}.panel input,.panel textarea{width:100%;border:1px solid var(--line);border-radius:7px;padding:10px 11px}.panel textarea{min-height:150px;resize:vertical}.dialog-actions{display:flex;justify-content:flex-end;gap:8px}.dialog-actions button:first-child{color:var(--ink);background:#eef2f2}@media (max-width:720px){.desktop{--menu-height:48px;--workspace-top:clamp(118px,23dvh,142px);--dock-button:38px;--dock-space:72px;--item-track:clamp(78px,24vw,104px);--item-row:clamp(116px,22dvh,146px);--item-gap:8px}.menu-bar{grid-template-columns:1fr auto;height:auto;min-height:48px;gap:8px;padding:8px 12px}.segmented{grid-column:1/-1;order:3}.wallpaper-switch{top:clamp(84px,16dvh,96px);right:var(--viewport-pad)}.desktop-grid{gap:8px}.toast{top:calc(clamp(84px, 16dvh, 96px) + 44px)}}@media (max-height:560px){.desktop{--workspace-top:calc(var(--menu-height) + clamp(34px, 7dvh, 44px));--dock-space:calc(var(--dock-button) + (var(--dock-pad) * 2) + 12px);--item-row:clamp(108px,26dvh,132px)}.wallpaper-switch{top:calc(var(--menu-height) + 6px)}.dock{bottom:8px}.drop-zone{min-height:44px}}@media (max-width:720px) and (max-height:560px){.desktop{--workspace-top:clamp(120px,31dvh,148px)}.wallpaper-switch{top:clamp(82px,22dvh,94px)}}