:root{
  --bg1:#f3f7f6; --bg2:#e4f4ee; --mint:#85d8c4; --teal:#6ec6b4;
  --text:#2f3b3a; --muted:#7f8f8d; --card:rgba(255,255,255,.62);
  --stroke:rgba(255,255,255,.85); --shadow:0 12px 30px rgba(26,70,60,.10);
  --radius:22px;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Nunito",sans-serif;color:var(--text);background:linear-gradient(135deg,var(--bg1),var(--bg2));overflow-x:hidden}
.hidden{display:none!important;}
#cursorGlow{position:fixed;width:220px;height:220px;border-radius:50%;pointer-events:none;z-index:0;background:radial-gradient(circle,rgba(133,216,196,.35) 0%,rgba(133,216,196,0) 65%);transform:translate(-50%,-50%)}
.bg-blur{position:fixed;border-radius:50%;filter:blur(60px);z-index:0}
.b1{width:260px;height:260px;left:-70px;bottom:-70px;background:#9be7d0}
.b2{width:220px;height:220px;right:5%;top:6%;background:#d5f0ff}
.b3{width:180px;height:180px;left:42%;top:-45px;background:#fdf2bf}

.board{position:relative;z-index:1;max-width:1260px;min-height:860px;margin:20px auto 40px;padding:10px}
.card{position:absolute;padding:18px;border-radius:var(--radius);box-shadow:var(--shadow);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease}
.glass{background:var(--card);border:1px solid var(--stroke);backdrop-filter:blur(8px)}
.tilt{transform:rotate(var(--r,0deg))}
.floaty{animation:floatY 5s ease-in-out infinite;animation-delay:var(--delay,0s)}
@keyframes floatY{0%,100%{translate:0 0}50%{translate:0 -7px}}

.sidebar{left:12px;top:110px;width:250px}
.hero{left:286px;top:12px;width:500px;min-height:150px}
.clock-card{left:815px;top:58px;width:210px;text-align:center}
.about-card{left:325px;top:200px;width:300px}
.calendar-card{left:655px;top:210px;width:380px}
.weather-card{left:1040px;top:220px;width:210px}
.links-card{left:120px;top:540px;width:300px;display:flex;gap:10px;flex-wrap:wrap}
.project-card{left:440px;top:615px;width:360px}
.music-card{left:820px;top:600px;width:430px;display:flex;justify-content:space-between;gap:12px;align-items:center}

#music.playing{box-shadow:0 0 20px rgba(100,149,237,.4),0 12px 30px rgba(26,70,60,.10);border:1px solid rgba(255,255,255,.5)}

.profile-mini{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.avatar{width:48px;height:48px;border-radius:14px;background:#fff;display:grid;place-items:center;font-size:24px}
.profile-mini h2{margin:0}
.profile-mini p{margin:0;color:#35b88a;font-size:12px;font-weight:800}
nav{display:grid;gap:8px}
nav a{text-decoration:none;color:var(--text);padding:10px 12px;border-radius:12px}
nav a:hover{background:#ffffffb5;transform:translateX(4px)}

.hero h1{margin:0;font-size:34px}
.hero p{margin:8px 0 12px;color:var(--muted)}
#waveBtn{border:0;background:linear-gradient(135deg,var(--mint),var(--teal));color:#fff;padding:10px 14px;border-radius:12px;font-weight:800;cursor:pointer}
#waveText{margin-left:8px;color:#3b9c87;font-weight:700}
#clock{font-size:36px;font-weight:800}
.clock-label,#dateText{color:var(--muted)}

.about-card .cat{font-size:36px}
.about-card h3{margin:6px 0}
.about-card p{margin:0;color:var(--muted)}
.about-card ul{margin:10px 0 0 18px;color:#4f615f}

.cal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.cal-head button{border:0;background:#fff;padding:6px 10px;border-radius:10px;cursor:pointer}
.week,.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.week span{font-size:12px;color:var(--muted);text-align:center}
.grid span{height:32px;border-radius:10px;display:grid;place-items:center;font-weight:600}
.grid .today{background:linear-gradient(135deg,var(--mint),var(--teal));color:white}
.grid .mute{color:#b9c4c2}

.weather-main{display:flex;gap:10px;align-items:center}
.weather-emoji{font-size:34px}
.temp{font-size:24px;font-weight:800}
.city{color:var(--muted)}
.weather-desc{margin:8px 0;color:#4d5e5c}

.pill{border:0;text-decoration:none;padding:10px 14px;border-radius:12px;color:#fff;font-weight:800;font-size:14px}
.github{background:#121212}
.pending{background:#b7c6c2;cursor:not-allowed}

.project-list{display:grid;gap:8px}
.repo-item{display:block;text-decoration:none;color:var(--text);background:#ffffffaf;border:1px solid #ffffffd4;border-radius:12px;padding:10px}
.repo-item .name{font-weight:800}
.repo-item .meta{font-size:12px;color:var(--muted)}
.loading,.hint{color:var(--muted)}

.music-left{flex:1}
.music-title{font-weight:800}
.music-desc{color:var(--muted)}
.bar{height:10px;background:#ffffffbb;border-radius:999px;overflow:hidden}
.bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--mint),var(--teal))}
.play-btn{width:42px;height:42px;border:0;border-radius:12px;background:#fff;cursor:pointer}
.music-btns{display:flex;gap:8px}
.source{display:block;margin-top:6px;color:var(--muted)}
.source a{color:#3b8fa0;text-decoration:none}
.source a:hover{text-decoration:underline}

.iot-panel{position:fixed;inset:0;z-index:20;background:linear-gradient(135deg,#eef8f5,#e3f2ec);display:flex;align-items:center;justify-content:center;padding:24px}
.iot-card{width:min(980px,95vw);background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.9);border-radius:24px;box-shadow:0 18px 40px rgba(20,70,60,.12);padding:28px 30px;color:#2f3b3a}
.iot-card h2{margin:0 0 8px;font-size:40px}
.iot-card h3{margin:0 0 18px;font-size:26px;color:#415654}
.iot-card p,.iot-card li{font-size:24px;line-height:1.6}
.back-btn{position:fixed;top:18px;left:18px;z-index:21;border:0;border-radius:12px;padding:10px 14px;cursor:pointer;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.08);font-weight:800}

@media (max-width:1300px){.weather-card{left:655px;top:500px;width:380px}}
@media (max-width:1100px){
  #cursorGlow{display:none}
  .board{max-width:700px;min-height:auto;display:grid;gap:14px;padding:14px}
  .card{position:static;transform:none!important;width:auto!important;animation:none}
  .iot-card h2{font-size:28px}.iot-card h3{font-size:20px}.iot-card p,.iot-card li{font-size:18px}
}

/* 页脚日期样式 */
.footer-date {
  text-align: center;
  padding: 30px 0 50px; /* 增加底部间距，防止显得太拥挤 */
  font-family: "Nunito", sans-serif; /* 统一字体 */
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--muted); /* 使用你定义的灰色变量 */
  text-transform: uppercase; /* 全大写显得更干练 */
  opacity: 0.7;
  position: relative;
  z-index: 1; /* 确保在背景装饰物之上 */
}

/* 适配移动端：当卡片变成流式布局时，日期也保持居中 */
@media (max-width:1100px) {
  .footer-date {
    margin-top: 20px;
    padding-bottom: 30px;
  }
}