:root{--ink: #171717;--ink-soft: #55524c;--ink-faint: #8a867e;--paper: #f1f0ec;--paper-deep: #e7e5df;--card: #faf9f6;--accent: #9f3027;--line: #dcd9d2}*{box-sizing:border-box;margin:0}html,body,#root{min-height:100%}body{background:var(--paper);color:var(--ink);font-family:-apple-system,PingFang SC,Noto Sans SC,sans-serif;font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}button{font-family:inherit;font-size:13.5px;padding:8px 16px;min-height:40px;border:1px solid var(--ink);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}button:hover{background:var(--ink);color:var(--paper)}button:disabled{opacity:.5;cursor:default}button.danger{border-color:var(--accent);color:var(--accent)}button.danger:hover{background:var(--accent);color:var(--card)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;font-family:inherit;font-size:13.5px;padding:8px 18px;min-height:40px;border:1px solid var(--ink);border-radius:999px;background:var(--ink);color:var(--paper);cursor:pointer;text-decoration:none;transition:background .15s ease,border-color .15s ease}.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:var(--card)}.btn-primary:disabled{opacity:.5}.state,.empty{text-align:center;padding:20vh 24px;color:var(--ink-soft)}.app{min-height:100vh;display:flex;flex-direction:column}header.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px clamp(16px,4vw,40px);background:color-mix(in srgb,var(--paper) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:40px;height:40px;border-radius:50%;background:var(--paper-deep);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink-faint)}.brand h1{font-size:17px;font-weight:600;letter-spacing:-.01em}.brand-sub{font-size:12px;color:var(--ink-faint)}.top-right{display:flex;align-items:center;gap:10px}.quota{display:flex;flex-direction:column;gap:3px;min-width:130px}.quota span{font-size:11.5px;color:var(--ink-faint);text-align:right}.quota-bar{height:4px;border-radius:2px;background:var(--paper-deep);overflow:hidden}.quota-fill{height:100%;background:var(--ink);border-radius:2px}main{flex:1;padding:24px clamp(16px,4vw,40px) 48px}.count{font-size:12.5px;color:var(--ink-faint);margin-bottom:14px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.card{display:flex;flex-direction:column;padding:0;border:1px solid var(--line);border-radius:14px;background:var(--card);overflow:hidden;text-align:left;min-height:44px;transition:transform .16s cubic-bezier(.22,1,.36,1),box-shadow .16s ease,border-color .16s ease}.card:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:0 8px 22px #17171714;background:var(--card);color:var(--ink)}.thumb{aspect-ratio:1 / 1;background:var(--paper-deep);display:flex;align-items:center;justify-content:center;overflow:hidden}.thumb img{width:100%;height:100%;object-fit:cover;display:block}.thumb-ico{font-size:34px}.card-meta{display:flex;flex-direction:column;gap:2px;padding:10px 12px 12px}.card-name{font-size:13.5px;font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-sub{font-size:11.5px;color:var(--ink-faint)}.empty{cursor:pointer}.empty-ico{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;background:var(--paper-deep);display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--ink-faint)}.empty h2{font-size:19px;font-weight:600;margin-bottom:8px}.empty p{font-size:13.5px;color:var(--ink-soft)}.drag-veil{position:fixed;top:0;right:0;bottom:0;left:0;z-index:90;background:color-mix(in srgb,var(--paper) 80%,transparent);display:flex;align-items:center;justify-content:center;border:2px dashed var(--ink);margin:12px;border-radius:18px;font-size:18px;font-weight:600;pointer-events:none}.modal-veil{position:fixed;top:0;right:0;bottom:0;left:0;z-index:95;background:#17171770;display:flex;align-items:center;justify-content:center;padding:18px}.modal{width:min(680px,100%);max-height:min(88vh,100%);overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:18px}.modal-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;background:var(--card);border-bottom:1px solid var(--line)}.modal-head h3{font-size:15.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.modal-head button{min-height:36px;padding:4px 13px}.modal-body{padding:18px 20px}.preview{background:var(--paper-deep);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:200px;max-height:54vh;margin-bottom:16px}.preview img,.preview video{max-width:100%;max-height:54vh;display:block}.preview audio{width:100%;padding:0 16px}.preview-file{display:flex;flex-direction:column;align-items:center;gap:8px;padding:36px;font-size:40px;color:var(--ink-faint)}.preview-file span{font-size:13px}.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.meta dt{font-size:11.5px;color:var(--ink-faint);margin-bottom:2px}.meta dd{font-size:13.5px}.badge{display:inline-block;font-size:11.5px;padding:2px 10px;border-radius:999px;border:1px solid var(--line);color:var(--ink-soft)}.modal-foot{position:sticky;bottom:0;display:flex;gap:10px;flex-wrap:wrap;padding:14px 20px;background:var(--card);border-top:1px solid var(--line)}.flash{position:fixed;left:50%;bottom:26px;transform:translate(-50%);z-index:100;background:var(--ink);color:var(--paper);font-size:13.5px;padding:10px 20px;border-radius:999px;box-shadow:0 6px 18px #17171740}@media (max-width: 640px){.quota{display:none}.grid{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:10px}main{padding-top:18px}}