:root{--bg:#f4f6f2;--surface:#fff;--text:#172019;--muted:#707a72;--line:#dce3dc;--green:#146c43;--green2:#0d5434;--soft:#e6f1e9;--danger:#b83d3d;--yellow:#f0ba49}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0}button,input,select{font:inherit}button,a{transition:.18s}header{height:68px;padding:0 max(24px,calc((100vw - 1160px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none;font-size:21px;font-weight:800}.brand-icon{width:31px;height:31px;display:grid;place-items:center;border-radius:7px;background:var(--text);color:#fff}.admin-link{color:var(--muted);font-size:14px;text-decoration:none}.admin-link:hover{color:var(--green)}main{width:min(1160px,calc(100% - 48px));margin:auto;padding:62px 0 80px}.hero{display:grid;grid-template-columns:1fr auto;align-items:end;gap:40px}.label{color:var(--green);font-size:12px;font-weight:800;text-transform:uppercase}.hero h1,.admin-title h1{margin:12px 0 14px;font-size:clamp(40px,5.2vw,64px);line-height:1.03;font-weight:650}.hero p,.admin-title p{margin:0;max-width:500px;color:var(--muted);line-height:1.7}.hero-stat{min-width:160px;padding:24px;border-left:3px solid var(--yellow)}.hero-stat strong{display:block;font-size:38px}.hero-stat span{color:var(--muted);font-size:13px}.panel{margin-top:54px}.toolbar{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:16px}.toolbar h2{margin:0 0 5px;font-size:23px}.toolbar>div>span{color:var(--muted);font-size:13px}.tools{display:flex;align-items:center;gap:9px}.search{height:40px;width:200px;padding:0 12px;display:flex;align-items:center;gap:7px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.search span{color:var(--muted);font-size:20px}.search input{min-width:0;width:100%;border:0;outline:0;background:transparent}.tools select{height:40px;padding:0 28px 0 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}.download-selected,.primary{height:40px;padding:0 16px;border:0;border-radius:7px;background:var(--green);color:#fff;font-weight:650;cursor:pointer}.download-selected:disabled{background:#c8d0ca;cursor:not-allowed}.download-selected:not(:disabled):hover,.primary:hover{background:var(--green2)}.table{background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 16px 45px rgba(35,52,41,.06)}.table-head,.file-row{display:grid;grid-template-columns:42px minmax(240px,1fr) 120px 160px 54px;align-items:center;padding:0 17px}.table-head{height:44px;background:#f8faf7;border-bottom:1px solid var(--line);color:var(--muted);font-size:11px;font-weight:700;text-transform:uppercase}.file-row{min-height:72px;border-bottom:1px solid var(--line)}.file-row:last-child{border-bottom:0}.file-row:hover{background:#fafcf9}.file-name{min-width:0;display:flex;align-items:center;gap:12px}.file-icon{flex:none;width:38px;height:38px;display:grid;place-items:center;border-radius:7px;background:var(--soft);color:var(--green);font-weight:750;font-size:11px}.file-name strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}.file-name small,.size,.date{color:var(--muted);font-size:12px}.round-action{width:34px;height:34px;display:grid;place-items:center;border:0;border-radius:6px;background:transparent;cursor:pointer;font-size:18px}.round-action:hover{background:var(--soft);color:var(--green)}input[type=checkbox]{width:16px;height:16px;accent-color:var(--green)}.empty{padding:70px 20px;text-align:center}.empty>span{font-size:36px;color:var(--muted)}.empty h3{margin:12px 0 5px}.empty p{margin:0;color:var(--muted);font-size:14px}.admin-title{display:flex;justify-content:space-between;align-items:end;gap:30px}.admin-title h1{font-size:46px}.primary{height:44px}.dropzone{margin-top:34px;min-height:146px;padding:28px 34px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;border:1.5px dashed #aebbb1;border-radius:8px;background:#f8faf7;cursor:pointer}.dropzone.drag{background:var(--soft);border-color:var(--green)}.upload-symbol{width:56px;height:56px;display:grid;place-items:center;border-radius:50%;background:var(--soft);color:var(--green);font-size:27px}.dropzone strong,.dropzone small{display:block}.dropzone small{margin-top:6px;color:var(--muted)}.dropzone button{height:40px;padding:0 16px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer}.admin-panel{margin-top:46px}.admin-head,.admin-row{grid-template-columns:minmax(250px,1fr) 110px 150px minmax(230px,.75fr) 78px}.share-link{min-width:0;display:flex;align-items:center;gap:6px}.share-link input{width:100%;height:34px;padding:0 9px;border:1px solid var(--line);border-radius:6px;background:#f8faf7;color:var(--muted);font-size:12px}.row-actions{display:flex}.delete:hover{background:#fae9e9;color:var(--danger)}.progress-modal{position:fixed;inset:0;display:grid;place-items:center;background:rgba(15,25,18,.28);z-index:10}.progress-modal[hidden]{display:none}.progress-modal>div{width:min(390px,calc(100% - 36px));padding:25px;background:#fff;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.18)}.progress-track{height:7px;margin:18px 0 9px;background:#e4e9e5;border-radius:8px;overflow:hidden}.progress-track span{display:block;width:0;height:100%;background:var(--green);transition:width .2s}.progress-modal small{color:var(--muted)}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,18px);padding:11px 16px;border-radius:7px;background:#172019;color:#fff;opacity:0;pointer-events:none;transition:.2s;z-index:20}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:800px){main{width:calc(100% - 32px);padding-top:42px}.hero h1{font-size:48px}.toolbar{align-items:flex-start;flex-direction:column}.tools{width:100%;flex-wrap:wrap}.search{flex:1}.table-head,.file-row{grid-template-columns:38px minmax(190px,1fr) 90px 48px}.table-head span:nth-of-type(3),.date{display:none}.admin-head,.admin-row{grid-template-columns:minmax(220px,1fr) 100px 170px 72px}.admin-head span:nth-child(3),.admin-row .date{display:none}}
.admin-nav{display:flex;align-items:center;gap:18px}.logout-button{height:34px;padding:0 12px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--muted);cursor:pointer}.logout-button:hover{border-color:var(--danger);color:var(--danger)}.login-main{min-height:calc(100vh - 68px);padding-top:0;display:grid;grid-template-columns:1fr 430px;align-items:center;gap:90px}.login-copy h1{margin:12px 0 14px;font-size:58px}.login-copy p{margin:0;color:var(--muted)}.login-form{padding:36px;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 20px 60px rgba(35,52,41,.09)}.login-mark{width:43px;height:43px;display:grid;place-items:center;border-radius:8px;background:var(--text);color:#fff;font-size:22px}.login-form h2{margin:25px 0 5px;font-size:24px}.login-form>p{margin:0 0 25px;color:var(--muted);font-size:14px}.login-form>label{display:block;margin-top:17px;font-size:13px;font-weight:650}.login-form input{width:100%;height:44px;margin-top:8px;padding:0 12px;border:1px solid var(--line);border-radius:7px;outline:0;background:#fff}.login-form input:focus{border-color:var(--green);box-shadow:0 0 0 3px var(--soft)}.password-wrap{position:relative;display:block}.password-wrap input{padding-right:44px}.password-wrap button{position:absolute;right:5px;bottom:5px;width:34px;height:34px;border:0;background:transparent;color:var(--muted);cursor:pointer}.login-error{min-height:20px;margin-top:13px;color:var(--danger);font-size:13px}.login-submit{width:100%;height:44px;margin-top:7px}.login-submit:disabled{opacity:.65;cursor:wait}
@media(max-width:800px){.login-main{grid-template-columns:1fr;gap:30px;padding:50px 0}.login-copy{text-align:center}.login-copy h1{font-size:45px}.login-form{width:min(430px,100%);margin:auto}}
@media(max-width:560px){header{height:60px;padding:0 14px}main{width:calc(100% - 24px);padding-top:32px}.hero{display:block}.hero h1{font-size:39px}.hero-stat{margin-top:28px}.tools{display:grid;grid-template-columns:1fr 1fr}.search{width:auto;grid-column:1/-1}.download-selected{grid-column:1/-1}.table-head{display:none}.file-row{grid-template-columns:34px 1fr 40px;min-height:76px;padding:0 11px}.size,.date{display:none}.admin-title{display:block}.admin-title h1{font-size:39px}.admin-title .primary{width:100%;margin-top:22px}.dropzone{display:flex;flex-direction:column;text-align:center;padding:25px}.admin-head{display:none}.admin-row{grid-template-columns:1fr 72px;grid-template-rows:auto auto;padding:15px}.admin-row .file-name{grid-column:1}.admin-row .size,.admin-row .date{display:none}.admin-row .share-link{grid-column:1/-1;margin-top:12px}.admin-row .row-actions{grid-column:2;grid-row:1}.toolbar .search{width:100%}.admin-nav .admin-link{display:none}.login-main{padding-top:32px}.login-copy h1{font-size:38px}.login-form{padding:25px}}
.user-row-actions{display:flex;align-items:center}.user-row-actions .round-action{color:inherit;text-decoration:none}.share-file{font-size:16px}.table:not(:has(.admin-row)) .table-head,.table:not(:has(.admin-row)) .file-row{grid-template-columns:42px minmax(240px,1fr) 120px 160px 78px}
@media(max-width:800px){.table:not(:has(.admin-row)) .table-head,.table:not(:has(.admin-row)) .file-row{grid-template-columns:38px minmax(190px,1fr) 90px 78px}}
@media(max-width:560px){.table:not(:has(.admin-row)) .file-row{grid-template-columns:34px 1fr 74px}}
.description-field{display:block;margin-top:12px;font-size:12px;color:var(--muted)}.description-field input{width:min(360px,100%);height:34px;margin-left:8px;padding:0 9px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text)}.copy-link{height:34px;padding:0 10px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--green);cursor:pointer;font-size:12px}.copy-link:hover{background:var(--soft)}
.hero h1{font-size:clamp(24px,2.6vw,32px)}
.admin-head,.admin-row{grid-template-columns:minmax(250px,1fr) 110px 150px minmax(150px,.6fr) 108px}.admin-row.is-hidden{background:#f5f6f4;color:var(--muted)}.admin-row.is-hidden .file-icon{filter:grayscale(1);opacity:.7}.visibility{font-size:16px}.admin-row.is-hidden .visibility{color:var(--green);background:var(--soft)}
@media(max-width:800px){.admin-head,.admin-row{grid-template-columns:minmax(220px,1fr) 100px 150px 108px}}
@media(max-width:560px){.admin-row{grid-template-columns:1fr 108px}.admin-row .row-actions{grid-column:2}}

/* Phone layout */
@media(max-width:560px){
  body{overflow-x:hidden}
  header{position:sticky;top:0;z-index:8;background:rgba(244,246,242,.96);backdrop-filter:blur(12px)}
  .brand{font-size:19px}.brand-icon{width:30px;height:30px}.admin-link{font-size:13px}
  main{padding-bottom:48px}
  .hero{display:grid;grid-template-columns:1fr auto;align-items:end;gap:16px}
  .hero h1{margin-top:9px;font-size:27px;line-height:1.2}
  .hero p{grid-column:1/-1;font-size:14px;line-height:1.65}
  .hero-stat{min-width:92px;margin:0;padding:9px 0 9px 14px}
  .hero-stat strong{font-size:27px}.hero-stat span{font-size:11px}
  .panel{margin-top:38px}.toolbar{gap:16px;margin-bottom:13px}.toolbar h2{font-size:21px}
  .tools{gap:8px}.tools select,.download-selected,.search{height:44px}.download-selected{font-size:14px}
  .table{border-radius:7px;box-shadow:0 8px 26px rgba(35,52,41,.05)}
  .table:not(:has(.admin-row)) .file-row{grid-template-columns:28px minmax(0,1fr) 88px;min-height:84px;padding:10px 9px}
  .file-name{gap:9px}.file-icon{width:36px;height:36px}
  .file-name strong{font-size:13px}.file-name small{max-width:100%;display:block;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .user-row-actions{justify-content:flex-end}.round-action{width:42px;height:42px}
  input[type=checkbox]{width:18px;height:18px}
  .admin-title h1{margin:8px 0;font-size:32px}.admin-title p{font-size:14px;line-height:1.6}
  .admin-title .primary{height:46px;margin-top:18px}
  .dropzone{margin-top:22px;padding:22px 16px;gap:12px}.upload-symbol{width:48px;height:48px}
  .dropzone strong{font-size:15px}.dropzone small{font-size:12px;line-height:1.5}
  .description-field{width:100%;margin-top:16px;text-align:left}.description-field span{display:block;margin-bottom:6px}
  .description-field input{width:100%;height:42px;margin:0}.dropzone>button{width:100%;height:44px}
  .admin-panel{margin-top:36px}
  .admin-row{grid-template-columns:minmax(0,1fr) 126px;grid-template-rows:auto auto;min-height:116px;padding:14px 10px}
  .admin-row .file-name{grid-column:1;grid-row:1}.admin-row .row-actions{grid-column:2;grid-row:1;justify-content:flex-end}
  .admin-row .share-link{grid-column:1/-1;grid-row:2;margin-top:10px}.copy-link{width:100%;height:42px}
  .logout-button{height:38px}.admin-nav{gap:8px}
  .login-main{min-height:calc(100vh - 60px);gap:24px;padding:30px 0 44px}
  .login-copy{text-align:left}.login-copy h1{margin:8px 0;font-size:32px}.login-copy p{font-size:14px}
  .login-form{padding:22px 18px}.login-form input,.login-submit{height:46px}
  .toast{bottom:16px;max-width:calc(100% - 24px);width:max-content;text-align:center;font-size:13px}
}

@media(max-width:370px){
  .hero{grid-template-columns:1fr}.hero-stat{display:flex;align-items:center;gap:8px;border-left:0;border-top:2px solid var(--yellow);padding:10px 0 0}.hero p{grid-column:auto}
  .tools{grid-template-columns:1fr}.search,.download-selected{grid-column:1}.admin-row{grid-template-columns:minmax(0,1fr) 120px}
}
.qr-modal{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:18px;background:rgba(15,25,18,.48);backdrop-filter:blur(4px)}.qr-modal[hidden]{display:none}.qr-dialog{position:relative;width:min(420px,100%);padding:30px;background:var(--surface);border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.25);text-align:center}.qr-close{position:absolute;top:12px;right:12px;width:38px;height:38px;border:0;border-radius:50%;background:var(--bg);cursor:pointer;font-size:22px}.qr-dialog h2{margin:10px 35px 6px;font-size:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.qr-dialog p{min-height:20px;margin:0 0 18px;color:var(--muted);font-size:13px;line-height:1.5}.qr-canvas-wrap{width:264px;max-width:100%;margin:auto;padding:12px;background:#fff;border:1px solid var(--line);border-radius:7px}.qr-canvas-wrap canvas{display:block;width:100%!important;height:auto!important}.qr-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:20px}.qr-actions button{height:44px;border:1px solid var(--line);border-radius:7px;background:var(--surface);cursor:pointer;font-weight:650}.qr-actions .primary{border-color:var(--green);background:var(--green)}.table:not(:has(.admin-row)) .table-head,.table:not(:has(.admin-row)) .file-row{grid-template-columns:42px minmax(240px,1fr) 120px 160px 118px}
@media(max-width:800px){.table:not(:has(.admin-row)) .table-head,.table:not(:has(.admin-row)) .file-row{grid-template-columns:38px minmax(190px,1fr) 90px 118px}}
@media(max-width:560px){.table:not(:has(.admin-row)) .file-row{grid-template-columns:28px minmax(0,1fr) 126px}.qr-dialog{padding:26px 18px 20px}.qr-actions{grid-template-columns:1fr}.qr-actions button{height:46px}}