:root{
  --bg-1:#0f0a1e;--bg-2:#1a1429;--bg-3:#252038;
  --purple:#8b5cf6;--blue:#3b82f6;--cyan:#06b6d4;--pink:#ec4899;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:#0f0a1e;color:#e5e7eb;font-family:'Inter','PingFang SC',-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px;line-height:1.7;overflow-x:hidden}
body.light{background:#f8f7fc;color:#1f2937}

.bg-stage{position:fixed;inset:0;z-index:-2;overflow:hidden;background:radial-gradient(ellipse at top left,rgba(139,92,246,.22),transparent 55%),radial-gradient(ellipse at bottom right,rgba(6,182,212,.18),transparent 50%),#0f0a1e}
body.light .bg-stage{background:radial-gradient(ellipse at top left,rgba(139,92,246,.10),transparent 55%),radial-gradient(ellipse at bottom right,rgba(6,182,212,.08),transparent 50%),#f8f7fc}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.35;animation:float 10s ease-in-out infinite}
.blob.p1{width:520px;height:520px;background:#8b5cf6;top:-120px;left:-120px;animation-delay:0s}
.blob.b1{width:460px;height:460px;background:#3b82f6;top:25%;right:-100px;animation-delay:-3s}
.blob.c1{width:420px;height:420px;background:#06b6d4;bottom:-100px;left:30%;animation-delay:-6s}
@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-20px) scale(1.05)}}

.glass{background:rgba(26,20,41,.55);backdrop-filter:blur(20px);border:1px solid rgba(139,92,246,.12)}
body.light .glass{background:rgba(255,255,255,.82);border-color:rgba(139,92,246,.16)}
.card-hover{transition:all .35s cubic-bezier(.4,0,.2,1)}
.card-hover:hover{transform:translateY(-4px);box-shadow:0 0 30px -5px rgba(139,92,246,.3);border-color:rgba(139,92,246,.35)}

.gradient-text{background:linear-gradient(135deg,#8b5cf6 0%,#3b82f6 50%,#06b6d4 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.gradient-bg{background:linear-gradient(135deg,#8b5cf6 0%,#3b82f6 100%)}
.gradient-border{position:relative}
.gradient-border::before{content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,#8b5cf6,#3b82f6,#06b6d4);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}

.btn-primary{background:linear-gradient(135deg,#8b5cf6 0%,#3b82f6 100%);transition:all .3s ease}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 24px -4px rgba(139,92,246,.55)}
.btn-secondary{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);transition:all .3s ease}
body.light .btn-secondary{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.12)}
.btn-secondary:hover{border-color:#8b5cf6;color:#8b5cf6}

.tag{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .65rem;border-radius:9999px;font-size:11px;font-weight:500}
.tag-purple{background:rgba(139,92,246,.15);color:#c4b5fd;border:1px solid rgba(139,92,246,.25)}
.tag-blue{background:rgba(59,130,246,.15);color:#93c5fd;border:1px solid rgba(59,130,246,.25)}
.tag-cyan{background:rgba(6,182,212,.15);color:#67e8f9;border:1px solid rgba(6,182,212,.25)}
.tag-pink{background:rgba(236,72,153,.15);color:#f9a8d4;border:1px solid rgba(236,72,153,.25)}
.tag-amber{background:rgba(245,158,11,.15);color:#fcd34d;border:1px solid rgba(245,158,11,.3)}
body.light .tag-purple{color:#7c3aed;background:rgba(139,92,246,.10);border-color:rgba(139,92,246,.2)}
body.light .tag-blue{color:#2563eb;background:rgba(59,130,246,.10);border-color:rgba(59,130,246,.2)}
body.light .tag-cyan{color:#0891b2;background:rgba(6,182,212,.10);border-color:rgba(6,182,212,.2)}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#8b5cf6,#3b82f6);border-radius:3px}

.input-field{width:100%;background:rgba(37,32,56,.6);border:1px solid rgba(139,92,246,.2);border-radius:.6rem;padding:.65rem .9rem;color:inherit;outline:none;transition:all .2s}
.input-field:focus{border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,.1)}
body.light .input-field{background:rgba(255,255,255,.7);border-color:rgba(139,92,246,.2)}

.select-field{width:100%;background:rgba(37,32,56,.6);border:1px solid rgba(139,92,246,.2);border-radius:.75rem;padding:.65rem 2.5rem .65rem .9rem;color:inherit;outline:none;transition:all .2s;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a78bfa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .7rem center;background-size:1.1rem;cursor:pointer}
.select-field:focus{border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,.1)}
body.light .select-field{background:rgba(255,255,255,.7);border-color:rgba(139,92,246,.2)}
.select-field option{background:#1a1429;color:#e5e7eb}
body.light .select-field option{background:#fff;color:#1f2937}

.nav-link{position:relative}
.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:linear-gradient(90deg,#8b5cf6,#3b82f6);transition:width .3s}
.nav-link:hover::after{width:100%}

/* 轮播图 */
.hero-slider{position:relative;width:100%;height:100%;overflow:hidden}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease;z-index:0}
.hero-slide.active{opacity:1;z-index:1}
.hero-slide-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-slide-mask{position:absolute;inset:0;background:linear-gradient(to right,rgba(15,10,30,.88) 0%,rgba(15,10,30,.65) 50%,rgba(15,10,30,.45) 100%)}
body.light .hero-slide-mask{background:linear-gradient(to right,rgba(248,247,252,.92) 0%,rgba(248,247,252,.70) 50%,rgba(248,247,252,.45) 100%)}
.hero-slide-content{position:relative;z-index:2}
.hero-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.hero-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.3);cursor:pointer;transition:all .3s}
.hero-dot.active{background:#8b5cf6;width:24px;border-radius:4px}

/* 跑马灯 */
.marquee{display:flex;overflow:hidden;mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent)}
.marquee-track{display:flex;gap:2rem;animation:marquee 30s linear infinite}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* 筛选标签 */
.filter-tab{transition:all .2s}
.filter-tab.active{background:rgba(139,92,246,.15);border-color:rgba(139,92,246,.4);color:#c4b5fd}
body.light .filter-tab.active{color:#7c3aed}

/* 多行截断 */
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}