/* ============================================================
   主题 19 · 暮光流光 (Twilight Shimmer)
   紫粉橙暮光渐变，温柔流动如黄昏城市天际线摄影集
   ============================================================ */
:root{
  --c-bg:#0e0a1a;
  --c-bg-grad:radial-gradient(circle at 18% 14%,rgba(124,58,237,.20),transparent 45%),
              radial-gradient(circle at 82% 22%,rgba(245,158,11,.16),transparent 45%),
              radial-gradient(circle at 50% 95%,rgba(236,72,153,.13),transparent 50%),
              linear-gradient(165deg,#0e0a1a,#1a1430);
  --c-surface:rgba(28,22,48,.72);
  --c-surface-2:rgba(40,30,64,.60);
  --c-text:#f5f0ff;
  --c-muted:#a892c4;
  --c-accent:#7c3aed;
  --c-accent-2:#f59e0b;
  --c-on-accent:#0e0a1a;
  --c-border:rgba(124,58,237,.16);
  --font-display:'Trebuchet MS','PingFang SC',sans-serif;
  --hero-grad:linear-gradient(115deg,#7c3aed,#ec4899 40%,#f59e0b);
  --nav-bg:rgba(14,10,26,.60);
  --nav-blur:blur(18px);
  --shadow:0 22px 55px rgba(124,58,237,.30);
  --radius:18px;
}
/* 暮光流动层 —— 紫橙渐变缓慢横移 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(110deg,rgba(124,58,237,.18) 0%,transparent 30%),
    linear-gradient(110deg,transparent 50%,rgba(236,72,153,.14) 70%,transparent 90%),
    radial-gradient(70% 50% at 80% 18%,rgba(245,158,11,.16),transparent 70%);
  background-size:220% 100%,220% 100%,100% 100%;
  filter:blur(10px);
  animation:twilightFlow 22s ease-in-out infinite alternate;
}
@keyframes twilightFlow{
  0%{background-position:0% 0,100% 0,0 0}
  100%{background-position:100% 0,0% 0,0 0}
}
/* 标题：纤细字重 + 渐变流光闪烁 */
.hero h1{font-weight:300;letter-spacing:-1.5px}
.hero h1 .grad{
  background:linear-gradient(115deg,#7c3aed,#ec4899 40%,#f59e0b 70%,#7c3aed);
  background-size:220% auto;-webkit-background-clip:text;background-clip:text;color:transparent;
  font-weight:800;animation:twilightShimmer 7s linear infinite;
}
@keyframes twilightShimmer{to{background-position:220% center}}
/* 玻璃质感卡片 */
.album-card{backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(124,58,237,.18)}
.album-card:hover{box-shadow:0 0 0 1px rgba(245,158,11,.45),0 34px 70px rgba(124,58,237,.40);border-color:rgba(245,158,11,.50)}
.album-info{background:rgba(26,20,48,.50)}
.album-info h3{font-weight:600}
.album-badge{background:linear-gradient(115deg,#7c3aed,#f59e0b);color:#0e0a1a;border:none}
.album-meta{border-top-color:rgba(124,58,237,.14)}
.album-meta .view{color:#f59e0b}
.section-head .kicker{background:linear-gradient(115deg,#7c3aed,#f59e0b);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:5px}
.about-visual{background:linear-gradient(135deg,#3a1c7e,#7c3aed 40%,#ec4899 70%,#f59e0b);background-size:200% auto;animation:twilightShimmer 9s linear infinite;box-shadow:0 0 60px rgba(124,58,237,.40)}
.eyebrow{background:linear-gradient(115deg,#7c3aed,#ec4899,#f59e0b) !important;color:#0e0a1a !important;letter-spacing:3px}
.btn.primary{background:linear-gradient(115deg,#7c3aed,#f59e0b);color:#0e0a1a;box-shadow:0 12px 30px rgba(124,58,237,.45)}
.btn.ghost{background:rgba(255,255,255,.05);color:#f5f0ff;border-color:rgba(124,58,237,.22)}
.divider{background:linear-gradient(115deg,#7c3aed,#ec4899,#f59e0b)}
.footer{background:#080510;border-top:1px solid rgba(124,58,237,.10)}
.logo-mark{box-shadow:0 6px 24px rgba(124,58,237,.55)}
.nav-menu a:hover{color:#7c3aed;background:rgba(124,58,237,.10)}
.ts-swatch.ts-twilight{background:linear-gradient(135deg,#7c3aed,#ec4899,#f59e0b)}
.shape.s1{background:#7c3aed !important;opacity:.22 !important}
.shape.s2{background:#f59e0b !important;opacity:.20 !important}