/* ========== Reset & Variables ========== */
:root{--bg:#f0f2f5;--surface:#fff;--surface2:#f7f8fa;--text:#1a1a2e;--text2:#6b7280;--text3:#9ca3af;--border:#e5e7eb;--accent:#4f46e5;--accent-hover:#4338ca;--accent-light:#eef2ff;--danger:#ef4444;--success:#22c55e;--radius:8px;--radius-sm:4px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC","PingFang SC",sans-serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
.container{max-width:960px;margin:0 auto;padding:0 20px}

/* ========== Header ========== */
.site-header{background:var(--surface);border-bottom:1px solid var(--border);padding:20px 0;text-align:center}
.site-header .logo{font-size:22px;font-weight:700}
.site-header .logo a{color:var(--text)}
.site-header .subtitle{font-size:14px;color:var(--text2);margin-top:4px}

/* ========== Upload ========== */
.upload-section{margin:24px 0}
.upload-zone{border:2px dashed var(--border);border-radius:16px;padding:48px 20px;text-align:center;background:var(--surface);cursor:pointer;transition:all .2s}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:var(--accent-light)}
.upload-zone .upload-icon{font-size:40px;margin-bottom:8px}
.upload-zone h2{font-size:18px;margin-bottom:4px}
.upload-zone p{font-size:14px;color:var(--text2);margin-bottom:16px}
.upload-methods{display:flex;justify-content:center;gap:16px;margin-top:14px;font-size:13px}
.method-link{color:var(--text3);cursor:pointer;transition:color .15s}
.method-link:hover{color:var(--accent)}
.url-row{display:flex;gap:8px;justify-content:center;margin-top:14px}
.url-row input{width:280px;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;outline:none}
.url-row input:focus{border-color:var(--accent)}

/* ========== Buttons ========== */
.btn{display:inline-flex;align-items:center;gap:4px;padding:10px 22px;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s;border:none;background:var(--surface2);color:var(--text2)}
.btn:hover{background:var(--border)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-outline{border:1px solid var(--border);background:transparent;color:var(--text2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:5px 14px;font-size:12px}

/* ========== Progress ========== */
.upload-progress{margin-top:12px;display:flex;align-items:center;gap:12px}
.progress-bar-wrap{flex:1;height:6px;background:var(--border);border-radius:99px;overflow:hidden}
.progress-bar{height:100%;width:0%;background:var(--accent);border-radius:99px;transition:width .3s}
.progress-text{font-size:13px;color:var(--text2);white-space:nowrap}

/* ========== Result Panel ========== */
.result-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.result-preview{width:180px;min-width:180px;border-radius:var(--radius);overflow:hidden;background:var(--surface2)}
.result-preview img{width:180px;height:120px;object-fit:cover}
.result-links{flex:1;min-width:0}
.result-links h3{font-size:15px;margin-bottom:10px}
.link-row{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.link-label{font-size:12px;color:var(--text3);width:60px;flex-shrink:0}
.link-input{flex:1;padding:6px 10px;border:1px solid var(--border);border-radius:4px;font-size:12px;font-family:"Courier New","Noto Sans SC",monospace;background:var(--surface2);color:var(--text);outline:none;cursor:pointer}
.link-input:focus{border-color:var(--accent)}
.close-result{margin-top:8px}

/* ========== Gallery ========== */
.gallery-section{margin-bottom:40px}
.gallery-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.gallery-header h2{font-size:17px;font-weight:600}
.gallery-actions{display:flex;gap:6px}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.gallery-empty{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--text3);font-size:14px}
.gallery-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:box-shadow .15s,transform .15s;position:relative}
.gallery-item:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);transform:translateY(-1px)}
.gallery-item .thumb{width:100%;height:140px;object-fit:cover;display:block;background:var(--surface2)}
.gallery-item .info{padding:8px 10px;font-size:12px;color:var(--text2);display:flex;justify-content:space-between;align-items:center}
.gallery-item .info .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.gallery-item .info .date{color:var(--text3);flex-shrink:0;margin-left:6px}
.gallery-item .del-overlay{position:absolute;top:4px;right:4px;width:24px;height:24px;border-radius:50%;background:rgba(0,0,0,.5);color:#fff;border:none;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s}
.gallery-item:hover .del-overlay{opacity:1}
.gallery-item .del-overlay:hover{background:var(--danger)}
.gallery-footer{text-align:center;margin-top:16px}

/* ========== Toast ========== */
.toast-container{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:9999}
.toast{padding:10px 20px;border-radius:var(--radius);background:#1a1a2e;color:#fff;font-size:13px;box-shadow:0 4px 12px rgba(0,0,0,.2);animation:toastIn .25s ease}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* ========== Modal ========== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:all .2s}
.modal-overlay.open{opacity:1;visibility:visible}
.modal-box{background:var(--surface);border-radius:12px;width:100%;max-width:700px;max-height:90vh;overflow-y:auto;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-box h2{font-size:17px;margin-bottom:12px}
.modal-box img{max-height:300px;border-radius:var(--radius);margin-bottom:16px}
.modal-close{float:right;width:28px;height:28px;border:none;background:transparent;font-size:20px;cursor:pointer;color:var(--text3);border-radius:50%}
.modal-close:hover{background:var(--hover,#f3f4f6);color:var(--text)}

/* ========== Footer ========== */
.site-footer{text-align:center;padding:20px 0;border-top:1px solid var(--border);color:var(--text3);font-size:13px}

/* ========== Responsive ========== */
@media(max-width:640px){
  .result-panel{flex-direction:column}
  .result-preview{width:100%;min-width:0}
  .result-preview img{width:100%;height:auto}
  .gallery-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .url-row input{width:180px}
}