:root{--fg:#fff;--dim:rgba(255,255,255,.62);--line:rgba(255,255,255,.28)}
*{box-sizing:border-box}
html{background:#050505;-webkit-text-size-adjust:100%;color-scheme:dark}
body{margin:0;color:var(--fg);
  font:20px/1.6 "VT323","Cascadia Mono",Consolas,"Courier New","Noto Sans Mono CJK SC","PingFang SC","Microsoft YaHei",monospace;
  word-break:break-word}
::selection{background:#fff;color:#000}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #fff;outline-offset:3px}

/* 背景：缓慢漂移的灰白光斑，给玻璃提供可折射的内容 */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:#050505}
.bg i{position:absolute;border-radius:50%;filter:blur(50px);will-change:transform;
  background:radial-gradient(circle at 35% 35%,#fff 0,#9a9a9a 40%,transparent 70%);
  animation:drift 26s ease-in-out infinite alternate}
.bg i:nth-child(1){width:55vmax;height:55vmax;left:-15vmax;top:-20vmax;opacity:.6}
.bg i:nth-child(2){width:45vmax;height:45vmax;right:-15vmax;top:25vh;opacity:.45;animation-duration:32s;animation-delay:-8s}
.bg i:nth-child(3){width:40vmax;height:40vmax;left:20vw;bottom:-25vmax;opacity:.5;animation-duration:38s;animation-delay:-15s}
@keyframes drift{to{transform:translate(8vmax,6vmax) scale(1.15)}}

.wrap{max-width:1040px;margin:0 auto;padding:44px 20px 72px}
.wrap.narrow{max-width:760px}
.logo{margin:0 0 14px;font-size:clamp(56px,16vw,124px);line-height:1;font-weight:400;letter-spacing:.02em;text-shadow:0 0 28px rgba(255,255,255,.38)}
.logo::before{content:">";color:var(--dim);margin-right:.25em}
.logo.adm{font-size:clamp(34px,9vw,60px);margin-bottom:24px}
.intro{max-width:60ch;margin:0;color:rgba(255,255,255,.78);white-space:pre-wrap}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:22px;margin-top:40px}

/* 液态玻璃面板 */
.box{position:relative;min-width:0;overflow:hidden;padding:20px 22px 12px;border-radius:28px;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(255,255,255,.2),rgba(255,255,255,.05) 45%,rgba(255,255,255,.11));
  -webkit-backdrop-filter:blur(22px) saturate(180%) brightness(1.1);
  backdrop-filter:blur(22px) saturate(180%) brightness(1.1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),inset 0 -1px 0 rgba(255,255,255,.12),inset 0 0 24px rgba(255,255,255,.07),0 18px 40px rgba(0,0,0,.45);
  transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.box::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(240px circle at var(--mx,25%) var(--my,-5%),rgba(255,255,255,.36),transparent 70%)}
.box>*{position:relative}
.grid .box:hover{transform:translateY(-3px)}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.box{background:rgba(48,48,48,.9)}}

.box h2{display:flex;align-items:center;gap:12px;margin:0 0 12px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.2);font-size:1.3em;font-weight:400}
.box p{margin:0 0 14px;white-space:pre-wrap}
.px{flex:none;width:40px;height:40px;padding:7px;fill:currentColor;border-radius:13px;
  background:rgba(255,255,255,.14);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}

.btns{margin-top:6px}
.btn{display:inline-block;margin:0 10px 10px 0;padding:3px 18px;border:1px solid rgba(255,255,255,.38);border-radius:999px;
  color:var(--fg);font:inherit;text-decoration:none;cursor:pointer;
  background:linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,.08));
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 4px 12px rgba(0,0,0,.35);
  transition:background .2s,color .2s,transform .2s}
.btn:hover,.btn:focus-visible{background:rgba(255,255,255,.92);color:#000;transform:translateY(-1px)}
.btn.solid{background:rgba(255,255,255,.88);color:#000}
.btn.solid:hover{background:rgba(255,255,255,.18);color:#fff}
.btn.sm{padding:0 12px;font-size:.85em}

.cur::after{content:"";display:inline-block;width:.5em;height:1em;margin-right:-.5em;vertical-align:-.12em;background:var(--fg);animation:blink 1s steps(1) infinite}
.rest{visibility:hidden}
.js .btns{opacity:0}
.js .btns.show{opacity:1;transition:opacity .35s}
@keyframes blink{50%{opacity:0}}

/* admin */
label{display:block;margin:0 0 14px}
label>span{display:block;margin-bottom:4px;color:var(--dim)}
input,textarea,select{width:100%;padding:8px 14px;border:1px solid var(--line);border-radius:14px;color:var(--fg);font:inherit;
  background:rgba(255,255,255,.08);box-shadow:inset 0 1px 3px rgba(0,0,0,.35)}
textarea{resize:vertical}
select option{background:#1a1a1a;color:#fff}
.tools{display:flex;gap:4px;justify-content:flex-end;margin-bottom:10px}
.tools .btn{margin:0}
#cards .card,.narrow>form>.box{margin-bottom:22px}
.msg{margin:0 0 18px;padding:6px 16px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.12)}
.links{margin:0 0 22px}
.savebar{position:sticky;bottom:12px;display:flex;gap:12px;justify-content:space-between;padding:10px 14px;border-radius:22px;
  border:1px solid var(--line);background:rgba(20,20,20,.45);
  -webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 10px 30px rgba(0,0,0,.5)}
.savebar .btn{margin:0}

@media (max-width:520px){
  body{font-size:19px}
  .wrap{padding:28px 14px 56px}
  .grid{gap:16px;margin-top:30px}
  .box{padding:16px 16px 8px;border-radius:24px}
}
@media (prefers-reduced-motion:reduce){.bg i,.cur::after{animation:none}.box{transition:none}}