:root{
  --bg:#0a0d14;--text:#e8ecf4;--muted:#8b95a8;
  --line:rgba(255,255,255,.1);--a:#6d7cff;--b:#25d0e0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);line-height:1.75;
  font:14px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(700px 500px at 12% -5%,rgba(109,124,255,.22),transparent 65%),
    radial-gradient(600px 460px at 92% 8%,rgba(37,208,224,.14),transparent 65%);
}
.nav{position:sticky;top:0;z-index:20;background:rgba(10,13,20,.75);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1040px;margin:auto;padding:14px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.links a{color:var(--muted);text-decoration:none;font-size:14px;transition:color .2s}
.links a:hover{color:#fff}
.nav-btn{background:linear-gradient(135deg,var(--a),var(--b));color:#fff !important;padding:7px 16px;border-radius:99px;font-size:13.5px;text-decoration:none}
.nav-btn:hover{opacity:.88}
.nav-user{color:var(--b) !important;font-weight:500}

.hero{max-width:1040px;margin:auto;padding:90px 24px 70px;display:flex;flex-direction:column;align-items:center;text-align:center;min-height:calc(100vh - 60px);justify-content:center}
.avatar{width:136px;height:136px;border-radius:50%;object-fit:cover;border:1px solid rgba(255,255,255,.15);box-shadow:0 20px 60px rgba(0,0,0,.55);margin-bottom:26px}
.avatar.fallback{display:flex;align-items:center;justify-content:center;font-size:52px;font-weight:700;background:linear-gradient(135deg,var(--a),var(--b))}
h1{font-size:clamp(32px,6vw,52px);margin:0 0 12px;background:linear-gradient(120deg,#fff 30%,#9fb0ff 70%,#5ee7f0);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.5px}
.typed{color:var(--b);font-size:20px;min-height:1.8em;margin-bottom:14px;font-weight:500}
.caret{color:var(--b);animation:b 1s step-end infinite}@keyframes b{50%{opacity:0}}
.intro{max-width:620px;color:var(--muted);margin:0}

.section{max-width:1040px;margin:auto;padding:60px 24px}
.section h2{font-size:23px;margin:0 0 26px;letter-spacing:.5px}
.section h2::after{content:"";display:block;width:52px;height:3px;margin-top:8px;border-radius:9px;background:linear-gradient(90deg,var(--a),var(--b))}
.text{color:#c3cbdb;max-width:780px}
.empty{color:var(--muted)}
.empty a{color:var(--b);text-decoration:none}
.empty a:hover{text-decoration:underline}

/* 分享卡片 */
.share-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.share-card{margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(255,255,255,.035);transition:.28s}
.share-card:hover{transform:translateY(-4px);border-color:rgba(109,124,255,.45);box-shadow:0 18px 40px -18px rgba(0,0,0,.9)}
.share-img{aspect-ratio:16/10;overflow:hidden;background:#111}
.share-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.share-card:hover .share-img img{transform:scale(1.05)}
.share-card figcaption{padding:16px 18px 18px}
.share-meta{display:flex;justify-content:space-between;gap:8px;font-size:12px;margin-bottom:6px}
.share-owner{color:var(--a)}
.share-date{color:var(--b)}
.share-card h3{margin:0 0 6px;font-size:16px}
.share-card p{margin:0;color:var(--muted);font-size:14px}

/* 联系 */
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.contact a,.contact div{display:flex;flex-direction:column;gap:4px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);color:inherit;text-decoration:none}
.contact span{font-size:13px;color:var(--muted)}
.contact b{font-weight:500;word-break:break-all}

footer{max-width:1040px;margin:auto;padding:36px 24px 56px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--b)}

/* 登录页 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:400px;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:18px;padding:32px 28px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.login-card h1{margin:0 0 8px;font-size:22px;background:none;color:var(--text);-webkit-text-fill-color:var(--text)}
.login-card p.sub{margin:0 0 22px;color:var(--muted);font-size:13px}
.login-tabs{display:flex;gap:8px;margin-bottom:22px}
.login-tabs a{flex:1;text-align:center;padding:9px;border-radius:10px;text-decoration:none;color:var(--muted);border:1px solid var(--line);font-size:14px}
.login-tabs a.on{background:linear-gradient(135deg,var(--a),var(--b));color:#fff;border-color:transparent}
.login-card label{display:block;margin-bottom:14px;color:var(--muted);font-size:13px}
.login-card input{display:block;width:100%;margin-top:6px;padding:11px 13px;border-radius:10px;border:1px solid var(--line);background:rgba(0,0,0,.25);color:var(--text);font:inherit}
.login-card input:focus{outline:none;border-color:var(--a);box-shadow:0 0 0 3px rgba(109,124,255,.15)}
.login-card button{width:100%;padding:12px;border:0;border-radius:10px;cursor:pointer;font:inherit;color:#fff;background:linear-gradient(135deg,var(--a),var(--b));font-weight:600}
.login-card .back{text-align:center;margin-top:16px;font-size:13px}
.login-card .back a{color:var(--b);text-decoration:none}
.login-err{padding:11px 14px;border-radius:10px;margin-bottom:16px;background:rgba(229,72,77,.12);color:#ff9b9e;border:1px solid rgba(229,72,77,.35);font-size:13.5px}

/* 用户中心 */
.profile-main{max-width:900px;margin:auto;padding:40px 24px}
.profile-main h2{font-size:18px;margin:0 0 18px}
.msg{padding:11px 14px;border-radius:10px;margin-bottom:16px;font-size:13.5px}
.msg.err{background:rgba(229,72,77,.12);color:#ff9b9e;border:1px solid rgba(229,72,77,.35)}
.msg.ok{background:rgba(15,157,88,.12);color:#7eeb9c;border:1px solid rgba(15,157,88,.35)}
.upload-form{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:16px;padding:22px}
.upload-form label{display:block;margin-bottom:14px;color:var(--muted);font-size:13px}
.upload-form input,.upload-form textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:10px;color:var(--text);font:inherit}
.upload-form input:focus,.upload-form textarea:focus{outline:none;border-color:var(--a);box-shadow:0 0 0 3px rgba(109,124,255,.15)}
.upload-form button{padding:12px 28px;border:0;border-radius:10px;background:linear-gradient(135deg,var(--a),var(--b));color:#fff;font-weight:600;cursor:pointer;font:inherit}
.btn-del{padding:7px 14px;border:1px solid rgba(229,72,77,.4);border-radius:8px;background:transparent;color:#ff9b9e;cursor:pointer;font:inherit;font-size:13px}
.btn-del:hover{background:rgba(229,72,77,.1)}

@media (max-width:600px){
  .links{gap:12px;font-size:13px}
  .hero{padding:60px 20px 50px}
  .section{padding:45px 20px}
}
/* 日常分享卡片 */
.share-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:20px;
}
.share-card{
  margin:0;
  max-width:100%;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,.035);
}
.share-img{
  width:100%;
  height:200px;
  overflow:hidden;
  background:#111;
}
.share-img img{
  display:block;
  width:100%;
  height:100%;
  max-width:100%;
  object-fit:cover;
}
.share-card figcaption{padding:16px 18px 18px}
.share-meta{display:flex;justify-content:space-between;gap:8px;font-size:12px;margin-bottom:6px}
.share-owner{color:var(--a)}
.share-date{color:var(--b)}
.share-card h3{margin:0 0 6px;font-size:16px}
.share-card p{margin:0;color:var(--muted);font-size:14px}