/* ============================================================
   LAMNING 公共样式表 v1.0
   全站共享：动画、玻璃效果、导航、按钮、加载、工具类
   ============================================================ */

/* === Reset === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

/* === 基础 === */
:root{
  --primary:#3b82f6;
  --primary-dark:#1d4ed8;
  --accent:#6366f1;
  --success:#10b981;
  --danger:#ef4444;
  --text:#1a1a2e;
  --text-muted:#64748b;
  --text-light:#94a3b8;
  --glass-bg:rgba(255,255,255,.55);
  --glass-border:rgba(255,255,255,.7);
  --glass-blur:16px;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-xl:24px;
  --shadow-sm:0 2px 12px rgba(0,0,0,.06);
  --shadow-md:0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:0 8px 40px rgba(0,0,0,.12);
  --ease-out:cubic-bezier(.22,1,.36,1);
  --ease-bounce:cubic-bezier(.34,1.56,.64,1);
  --ease-smooth:cubic-bezier(.4,0,.2,1);
}

body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  color:var(--text);line-height:1.6;min-height:100vh;overflow-x:hidden;
}

/* === 动画背景 === */
.animated-bg{
  position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;
  transition:filter 1s ease;
  background:linear-gradient(135deg,#dbeafe 0%,#e0e7ff 20%,#cffafe 40%,#ede9fe 60%,#dbeafe 80%,#e0f2fe 100%);
  background-size:400% 400%;animation:gf 20s ease infinite;
}
@keyframes gf{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* 浮动粒子 */
.particles{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.particle{position:absolute;width:6px;height:6px;border-radius:50%;background:rgba(59,130,246,.1);animation:float linear infinite}
@keyframes float{
  0%{transform:translateY(100vh) scale(0);opacity:0}
  10%{opacity:1}90%{opacity:1}
  100%{transform:translateY(-10vh) scale(1);opacity:0}
}

/* === 容器 === */
.ctn{width:100%;max-width:960px;margin:0 auto;padding:0 24px}

/* === 导航栏 === */
.nav-bar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.6);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.7);
}
.nav-inner{display:flex;justify-content:space-between;align-items:center;height:60px}
.nav-logo{
  font-size:18px;font-weight:700;color:var(--text);text-decoration:none;
  display:flex;align-items:center;gap:10px;
}
.nav-logo .dot{
  width:10px;height:10px;background:var(--primary);border-radius:2px;
  animation:dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.6}}
.nav-links{display:flex;gap:12px}
.nav-links a{font-size:13px;font-weight:500;color:var(--text-muted);text-decoration:none;transition:color .2s}
.nav-links a:hover{color:var(--text)}

/* === 玻璃卡片 === */
.glass{
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
  transition:transform .3s var(--ease-out),box-shadow .3s var(--ease-out);
}
.glass:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.glass-header{
  padding:14px 20px;
  background:rgba(0,0,0,.02);border-bottom:1px solid rgba(0,0,0,.04);
  display:flex;justify-content:space-between;align-items:center;
}
.glass-header h3{font-size:15px;font-weight:600}
.glass-body{padding:20px}

.glass-card{background:rgba(255,255,255,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.7);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md);transition:all .35s var(--ease-out);position:relative;overflow:hidden}
.glass-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}

/* === 按钮 === */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border:none;border-radius:var(--radius-md);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:all .25s var(--ease-out);
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,.35)}
.btn-primary:active{transform:scale(.97)}
.btn-sm{padding:6px 14px;border:none;border-radius:var(--radius-sm);font-size:12px;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center}
.btn-view{background:rgba(59,130,246,.1);color:var(--primary)}
.btn-view:hover{background:rgba(59,130,246,.2)}
.btn-dl{background:rgba(16,185,129,.1);color:var(--success)}
.btn-dl:hover{background:rgba(16,185,129,.2)}
.btn-del{background:rgba(239,68,68,.1);color:var(--danger)}
.btn-del:hover{background:rgba(239,68,68,.2)}

/* === 加载遮罩 === */
.page-loader{
  position:fixed;inset:0;z-index:500;
  background:linear-gradient(135deg,#dbeafe 0%,#e0e7ff 20%,#cffafe 40%,#ede9fe 60%,#dbeafe 80%,#e0f2fe 100%);
  background-size:400% 400%;animation:gf 20s ease infinite;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  transition:opacity .6s var(--ease-smooth),visibility .6s;
}
.page-loader.hide{opacity:0;visibility:hidden;pointer-events:none}
.loader-ring{
  width:44px;height:44px;
  border:3px solid rgba(59,130,246,.12);border-top-color:var(--primary);
  border-radius:50%;animation:lrspin .7s linear infinite;
}
@keyframes lrspin{to{transform:rotate(360deg)}}
.loader-label{margin-top:16px;font-size:14px;color:var(--text-muted);font-weight:500;letter-spacing:.3px}

/* 深色主题覆盖 */
.theme-dark .page-loader{
  background:#0a0a1a;
  background-image:radial-gradient(1200px 600px at 20% -10%,rgba(0,212,255,.08),transparent 60%),
    radial-gradient(1000px 700px at 110% 110%,rgba(124,58,237,.10),transparent 60%),
    linear-gradient(180deg,#0a0a1a,#0d0d22);
}
.theme-dark .loader-ring{border-color:rgba(0,212,255,.12);border-top-color:#00d4ff}
.theme-dark .loader-label{color:rgba(215,227,245,.5)}

/* === 入场动画 === */
.slide-up{
  opacity:0;transform:translateY(28px);
  transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.slide-up.show{opacity:1;transform:translateY(0)}

.slide-in-left{
  opacity:0;transform:translateX(-24px);
  transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.slide-in-left.show{opacity:1;transform:translateX(0)}

.slide-in-right{
  opacity:0;transform:translateX(24px);
  transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.slide-in-right.show{opacity:1;transform:translateX(0)}

.scale-in{
  opacity:0;transform:scale(.92);
  transition:opacity .5s var(--ease-out),transform .5s var(--ease-bounce);
}
.scale-in.show{opacity:1;transform:scale(1)}

/* === 工具类 === */
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
.text-light{color:var(--text-light)}
.mt-sm{margin-top:8px}.mt-md{margin-top:16px}.mt-lg{margin-top:24px}
.mb-sm{margin-bottom:8px}.mb-md{margin-bottom:16px}.mb-lg{margin-bottom:24px}

/* === Toast === */
.toast{
  position:fixed;top:80px;left:50%;transform:translateX(-50%) translateY(-8px);
  background:#0f172a;color:#fff;padding:10px 24px;
  border-radius:var(--radius-md);font-size:13px;z-index:999;
  opacity:0;transition:opacity .3s,transform .3s var(--ease-bounce);
  box-shadow:0 4px 20px rgba(0,0,0,.15);pointer-events:none;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* === 响应式 === */
@media(max-width:768px){
  .ctn{padding:0 16px}
  .nav-inner{height:52px}
  .nav-logo{font-size:16px}
}

/* === 打印 === */
@media print{
  .page-loader,.nav-bar,.animated-bg,.particles{display:none!important}
  .glass,.glass-card{box-shadow:none;border:1px solid #ddd}
}