/* ============================================================
   图床 · PicBed  —— 统一样式
   风格:温润纸感底色 + 朱砂红点缀 + 衬线标题(呼应古典气质)
   ============================================================ */
:root{
  --paper:#f6f3ec;
  --card:#fffdf8;
  --ink:#26221c;
  --ink-soft:#6b6357;
  --line:#e6e0d4;
  --line-2:#d9d2c4;
  --accent:#c0392b;       /* 朱砂红 */
  --accent-deep:#9c2c20;
  --accent-soft:#f7e7e3;
  --ok:#2e7d4f;
  --warn:#b8860b;
  --shadow:0 1px 2px rgba(38,34,28,.05), 0 8px 24px rgba(38,34,28,.06);
  --shadow-lg:0 12px 40px rgba(38,34,28,.18);
  --r:14px;
  --serif:"Songti SC","STSong",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:
    radial-gradient(900px 500px at 85% -10%, #fbe9e5 0%, transparent 60%),
    radial-gradient(700px 400px at -5% 110%, #eef0e6 0%, transparent 55%),
    var(--paper);
  background-attachment:fixed;
  line-height:1.6;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-deep)}
kbd{background:#efe9dd;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;padding:1px 6px;font:inherit;font-size:.85em}

/* ---------- 通用按钮 ---------- */
.btn-primary{
  background:linear-gradient(180deg,var(--accent),var(--accent-deep));
  color:#fff;border:0;border-radius:10px;padding:10px 22px;
  font-size:15px;font-weight:600;cursor:pointer;letter-spacing:.05em;
  box-shadow:0 4px 14px rgba(192,57,43,.28);transition:transform .12s,box-shadow .12s,filter .12s;
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--card);color:var(--ink);border:1px solid var(--line-2);
  border-radius:10px;padding:9px 18px;font-size:14px;cursor:pointer;transition:.12s;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);margin-right:10px;vertical-align:middle}

/* ============================================================ 登录页 */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{
  width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow);padding:40px 36px;
}
.auth-brand{font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:.04em}
.auth-sub{color:var(--ink-soft);font-size:13px;margin:8px 0 24px}
.auth-card label{display:block;font-size:12px;color:var(--ink-soft);margin:14px 0 6px;letter-spacing:.05em}
.auth-card input{
  width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;
  background:#fff;font-size:15px;transition:.12s;
}
.auth-card input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.auth-card .btn-primary{width:100%;margin-top:24px}
.auth-err{background:var(--accent-soft);color:var(--accent-deep);border:1px solid #f0cdc7;border-radius:10px;padding:10px 14px;font-size:13px;margin-bottom:4px}
.auth-foot{text-align:center;color:#a89f8e;font-size:12px;margin:26px 0 0}

/* ============================================================ 顶栏 */
.topbar{
  display:flex;align-items:center;gap:24px;padding:14px 28px;
  background:rgba(255,253,248,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
}
.brand{font-family:var(--serif);font-size:20px;font-weight:700}
.nav{display:flex;gap:4px;margin-left:8px}
.nav a{color:var(--ink-soft);padding:7px 14px;border-radius:9px;font-size:14px;font-weight:500}
.nav a:hover{background:#efe9dd;color:var(--ink)}
.nav a.active{background:var(--ink);color:#fff}
.me{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:14px}
.me .who em{font-style:normal;font-size:11px;background:var(--accent-soft);color:var(--accent-deep);padding:2px 7px;border-radius:6px;margin-left:4px}
.me .logout{color:var(--ink-soft)}
.banner{background:#fff7e6;border-bottom:1px solid #f0e0b8;color:#8a6d0b;padding:10px 28px;font-size:13.5px;text-align:center}

.container{max-width:1100px;margin:0 auto;padding:28px 24px 80px}
.empty{background:var(--card);border:1px dashed var(--line-2);border-radius:var(--r);padding:50px;text-align:center;color:var(--ink-soft)}

/* ============================================================ 上传工作台 */
.drop{
  background:var(--card);border:2px dashed var(--line-2);border-radius:20px;
  padding:48px 24px;text-align:center;transition:.18s;cursor:pointer;
}
.drop:hover,.drop:focus{border-color:var(--accent);background:#fffefb;outline:none}
.drop.dragover{border-color:var(--accent);background:var(--accent-soft);transform:scale(1.005)}
.drop-icon{font-size:42px;color:var(--accent);line-height:1}
.drop-title{font-size:16px;margin:14px 0 6px;font-weight:600}
.drop-sub{color:var(--ink-soft);font-size:13px;margin:0 0 18px}
.drop-sub b{color:var(--accent-deep)}

.upbar{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:18px}
.seg{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.seg-label{font-size:13px;color:var(--ink-soft)}
.seg-opts{display:inline-flex;background:#efe9dd;border-radius:10px;padding:3px}
.seg-opt{border:0;background:transparent;padding:7px 14px;border-radius:8px;font-size:13px;cursor:pointer;color:var(--ink-soft);transition:.12s}
.seg-opt.active{background:#fff;color:var(--ink);box-shadow:var(--shadow)}
.pwd-input{padding:8px 12px;border:1px solid var(--line-2);border-radius:9px;font-size:13px;width:160px}
.pwd-input:focus{outline:0;border-color:var(--accent)}
.remote{margin-left:auto;display:flex;gap:8px;flex:1;min-width:260px;max-width:520px}
.remote input{flex:1;padding:9px 13px;border:1px solid var(--line-2);border-radius:10px;font-size:13px}
.remote input:focus{outline:0;border-color:var(--accent)}

/* ---------- 结果卡片 ---------- */
.results{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.card{
  display:flex;gap:18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:14px;box-shadow:var(--shadow);
  animation:rise .3s ease both;
}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.card.err{border-color:#f0cdc7;background:#fdf3f1}
.card .thumb{width:120px;height:120px;flex:none;border-radius:10px;overflow:hidden;background:#f0ece2;display:flex;align-items:center;justify-content:center}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .info{flex:1;min-width:0}
.card .meta{font-size:12.5px;color:var(--ink-soft);margin-bottom:10px;display:flex;gap:14px;flex-wrap:wrap}
.card .meta .tag{padding:1px 8px;border-radius:6px;font-size:11px}
.tag.public{background:#e8f3ec;color:var(--ok)}
.tag.private{background:#eee;color:#555}
.tag.password{background:#fdeede;color:var(--warn)}
.tag.dup{background:#e6f0fb;color:#2a6db5}

.links{display:flex;flex-direction:column;gap:7px}
.link-row{display:flex;align-items:center;gap:8px}
.link-row .k{flex:none;width:74px;font-size:11px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em}
.link-row .v{flex:1;min-width:0;background:#f3efe6;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.copy-btn{flex:none;border:1px solid var(--line-2);background:#fff;border-radius:8px;padding:5px 12px;font-size:12px;cursor:pointer;transition:.12s}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}
.copy-btn.done{background:var(--ok);color:#fff;border-color:var(--ok)}

/* ============================================================ 图库 / 瀑布流 */
.gal-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.gal-head h1{font-family:var(--serif);font-size:24px;margin:0}
.gal-head .count{color:var(--ink-soft);font-size:13px}
.gal-filter{margin-left:auto;display:flex;gap:8px}
.gal-filter select,.gal-filter input{padding:8px 12px;border:1px solid var(--line-2);border-radius:9px;font-size:13px;background:#fff}

.masonry{column-gap:16px;column-count:4}
@media(max-width:1000px){.masonry{column-count:3}}
@media(max-width:680px){.masonry{column-count:2}}
@media(max-width:440px){.masonry{column-count:1}}
.tile{
  break-inside:avoid;margin-bottom:16px;background:var(--card);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:.16s;position:relative;
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.tile img{width:100%;display:block;cursor:zoom-in;background:#f0ece2}
.tile .tbar{display:flex;align-items:center;gap:8px;padding:8px 10px;font-size:11.5px;color:var(--ink-soft)}
.tile .tbar .vis{margin-left:auto}
.tile-actions{position:absolute;top:8px;right:8px;display:flex;gap:6px;opacity:0;transition:.15s}
.tile:hover .tile-actions{opacity:1}
.tile-actions button{border:0;background:rgba(0,0,0,.55);color:#fff;border-radius:7px;padding:5px 9px;font-size:12px;cursor:pointer;backdrop-filter:blur(3px)}
.tile-actions button:hover{background:var(--accent)}
.pager{display:flex;justify-content:center;gap:6px;margin-top:30px}
.pager a,.pager span{padding:7px 13px;border-radius:9px;border:1px solid var(--line-2);background:#fff;font-size:13px;color:var(--ink)}
.pager .cur{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- 灯箱 ---------- */
.lightbox{position:fixed;inset:0;background:rgba(20,17,13,.88);z-index:200;display:none;align-items:center;justify-content:center;flex-direction:column;padding:30px}
.lightbox.show{display:flex}
.lightbox img{max-width:92vw;max-height:78vh;border-radius:8px;box-shadow:var(--shadow-lg)}
.lb-bar{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center;max-width:760px}
.lb-bar .copy-btn{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.25)}
.lb-bar .copy-btn:hover{background:var(--accent);border-color:var(--accent)}
.lb-close{position:absolute;top:20px;right:26px;color:#fff;font-size:30px;cursor:pointer;line-height:1}
.lb-info{color:#cfc8ba;font-size:13px;margin-top:10px}

/* ============================================================ 后台:表单/表格 */
.tabs{display:flex;gap:6px;margin-bottom:22px;border-bottom:1px solid var(--line)}
.tabs a{padding:10px 16px;color:var(--ink-soft);font-size:14px;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs a.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);margin-bottom:22px}
.panel h2{font-family:var(--serif);font-size:19px;margin:0 0 16px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{color:var(--ink-soft);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em}
tbody tr:hover{background:#faf7f0}
.tag-mini{display:inline-block;font-size:11px;padding:1px 7px;border-radius:5px;background:#efe9dd;color:var(--ink-soft);margin:1px}
.perm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin:10px 0}
.perm-grid label{display:flex;gap:8px;align-items:center;font-size:13px;background:#f3efe6;padding:8px 12px;border-radius:9px;cursor:pointer}
.form-row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;margin-bottom:6px}
.form-row .fld{display:flex;flex-direction:column;gap:5px}
.form-row label{font-size:12px;color:var(--ink-soft)}
.form-row input,.form-row select{padding:9px 12px;border:1px solid var(--line-2);border-radius:9px;font-size:14px;background:#fff}
.form-row input:focus{outline:0;border-color:var(--accent)}
.danger{color:var(--accent);cursor:pointer;background:none;border:0;font-size:13px}
.danger:hover{text-decoration:underline}
.flash{padding:11px 16px;border-radius:10px;font-size:13.5px;margin-bottom:18px}
.flash.ok{background:#e8f3ec;color:var(--ok);border:1px solid #c4e3d0}
.flash.bad{background:var(--accent-soft);color:var(--accent-deep);border:1px solid #f0cdc7}
.log-action{font-weight:600}
.log-action.upload{color:var(--ok)}
.log-action.delete{color:var(--accent)}
.log-action.login{color:#2563a8}
.log-action.login_fail{color:var(--warn)}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 22px;border-radius:30px;font-size:13.5px;opacity:0;pointer-events:none;transition:.25s;z-index:300;box-shadow:var(--shadow-lg)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 访问 / 密码门 ---------- */
.gate{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.gate-card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:36px;max-width:360px;width:100%;text-align:center}
.gate-card h2{font-family:var(--serif);margin:0 0 8px}
.gate-card p{color:var(--ink-soft);font-size:13px;margin:0 0 20px}
.gate-card input{width:100%;padding:12px;border:1px solid var(--line-2);border-radius:10px;font-size:15px;margin-bottom:14px}
.gate-card input:focus{outline:0;border-color:var(--accent)}
.gate-card .btn-primary{width:100%}
.view-page{max-width:900px;margin:30px auto;padding:0 20px;text-align:center}
.view-page img{max-width:100%;border-radius:12px;box-shadow:var(--shadow-lg)}