/* ===== PLC 学习工坊 · 深空工业主题（全站共享） ===== */
:root{
  --bg:#070b16; --panel:rgba(255,255,255,.045); --panel2:rgba(255,255,255,.07);
  --line:rgba(148,180,255,.14); --line2:rgba(148,180,255,.3);
  --tx:#e8eefb; --tx2:#94a3c4; --tx3:#64748f;
  --cy:#22d3ee; --sky:#38bdf8; --bl:#2563eb; --pu:#818cf8; --am:#fbbf24; --gr:#34d399;
}
*{margin:0;padding:0;box-sizing:border-box}
html{color-scheme:dark}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--tx);min-height:100vh}
/* 背景光晕 + 动态网格 */
body::before{content:'';position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:radial-gradient(1100px 560px at 78% -8%,rgba(37,99,235,.22),transparent 62%),
             radial-gradient(860px 480px at 6% 108%,rgba(34,211,238,.13),transparent 62%),
             radial-gradient(700px 420px at 50% 50%,rgba(129,140,248,.06),transparent 70%)}
body::after{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(125,170,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(125,170,255,.05) 1px,transparent 1px);
  background-size:44px 44px;animation:gridmove 60s linear infinite}
@keyframes gridmove{to{background-position:44px 44px}}
/* 头部 */
header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:13px 26px;background:rgba(10,15,30,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer}
.badge{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#0ea5e9,#4f46e5);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 0 14px rgba(56,189,248,.55),inset 0 0 8px rgba(255,255,255,.25);animation:pulseglow 3.2s ease-in-out infinite}
@keyframes pulseglow{50%{box-shadow:0 0 24px rgba(56,189,248,.85),inset 0 0 8px rgba(255,255,255,.25)}}
.brand b{font-size:16px;font-weight:600;letter-spacing:.5px}
.brand span{font-size:12px;color:var(--tx3)}
.userbox{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--tx2)}
.userbox a{color:var(--sky);text-decoration:none;cursor:pointer}
.userbox a:hover{color:#7dd3fc;text-shadow:0 0 10px rgba(56,189,248,.6)}
/* 通用 */
h2.page{font-size:19px;font-weight:600;letter-spacing:.3px}
.grad-text{background:linear-gradient(92deg,#7dd3fc,#818cf8);-webkit-background-clip:text;background-clip:text;color:transparent}
p.sub{font-size:13px;color:var(--tx2);margin-bottom:20px}
main{max-width:1000px;margin:0 auto;padding:32px 20px 60px}
.view{display:none}.view.on{display:block}
/* 卡片 */
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px;
  backdrop-filter:blur(10px);transition:border-color .18s,box-shadow .18s,transform .18s}
.card:hover{border-color:var(--line2);box-shadow:0 6px 24px rgba(2,8,23,.55)}
.card h3{font-size:15px;font-weight:600;margin-bottom:8px}
.meta{font-size:12.5px;color:var(--tx2);line-height:1.7}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px}
/* 按钮 */
.btn{display:inline-block;border:none;border-radius:10px;padding:11px 26px;font-size:14px;cursor:pointer;font-family:inherit;text-align:center;text-decoration:none;
  background:linear-gradient(135deg,#0891b2,#2563eb);color:#fff;box-shadow:0 2px 14px rgba(37,99,235,.4);transition:all .16s}
.btn:hover{box-shadow:0 4px 22px rgba(56,189,248,.55);transform:translateY(-1px)}
.btn:disabled{opacity:.45;cursor:default;transform:none;box-shadow:none}
.btn.plain{background:rgba(255,255,255,.06);border:1px solid var(--line2);box-shadow:none;color:var(--tx)}
.btn.plain:hover{border-color:var(--cy);color:#a5f3fc}
.btn.small{padding:7px 14px;font-size:13px}
/* 输入 */
input,textarea,select{font-family:inherit;color:var(--tx)}
input[type=text],input[type=password],input[type=number],textarea,.finput{
  width:100%;background:rgba(13,20,40,.6);border:1px solid var(--line);border-radius:9px;padding:10px 12px;font-size:14px;outline:none;transition:border .15s,box-shadow .15s}
input:focus,textarea:focus{border-color:var(--cy);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
input::placeholder,textarea::placeholder{color:var(--tx3)}
.flabel{font-size:13px;color:var(--tx2);margin:14px 0 6px}
/* 状态 chips */
.chip{font-size:11.5px;padding:3px 10px;border-radius:99px;white-space:nowrap;border:1px solid transparent}
.chip.pending{background:rgba(56,189,248,.12);color:#7dd3fc;border-color:rgba(56,189,248,.3)}
.chip.submitted{background:rgba(148,163,184,.12);color:#cbd5e1;border-color:rgba(148,163,184,.3)}
.chip.ai_reviewed{background:rgba(251,191,36,.1);color:#fcd34d;border-color:rgba(251,191,36,.3)}
.chip.final{background:rgba(52,211,153,.1);color:#6ee7b7;border-color:rgba(52,211,153,.32)}
.score-big{font-size:26px;font-weight:700;color:#7dd3fc;text-shadow:0 0 16px rgba(56,189,248,.45)}
/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid rgba(148,180,255,.1)}
th{background:rgba(148,180,255,.07);font-size:12.5px;color:var(--tx2);font-weight:600;letter-spacing:.5px}
tr:hover td{background:rgba(148,180,255,.05)}
/* 弹窗 */
dialog{border:1px solid var(--line2);border-radius:14px;padding:26px;background:rgba(13,20,40,.94);color:var(--tx);box-shadow:0 20px 60px rgba(0,0,0,.6)}
dialog::backdrop{background:rgba(2,6,18,.72);backdrop-filter:blur(4px)}
dialog h3{font-size:16px;margin-bottom:16px}
dialog label{display:block;font-size:13px;color:var(--tx2);margin:12px 0 5px}
/* toast / 空态 / 滚动条 */
#toast{position:fixed;bottom:34px;left:50%;transform:translateX(-50%);background:rgba(13,20,40,.94);border:1px solid var(--line2);
  color:#a5f3fc;padding:11px 22px;border-radius:10px;font-size:13.5px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:99;
  box-shadow:0 8px 30px rgba(0,0,0,.5)}
.empty{text-align:center;color:var(--tx3);font-size:13.5px;padding:40px 0}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(148,180,255,.18);border-radius:9px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(148,180,255,.35);border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}