/*
Theme Name: 炽策星火创业社
Theme URI: https://www.coostarts.com
Description: 炽策星火创业社官方网站主题 - 炽策为谋，星火启程
Author: Coostarts
Version: 1.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: www-coostarts-com
*/

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'DM Sans','Noto Sans SC',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg-deep);color:var(--text-primary);
  line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:rgba(0,212,255,0.15);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:rgba(0,212,255,0.3)}

:root{
  --bg-deep:#050510;
  --glass-bg:rgba(255,255,255,0.03);
  --glass-bg-hover:rgba(255,255,255,0.07);
  --glass-border:rgba(255,255,255,0.06);
  --glass-border-hover:rgba(255,255,255,0.15);
  --accent-cyan:#00d4ff;
  --accent-fire:#ff7b3a;
  --accent-gold:#ffd166;
  --accent-purple:#a855f7;
  --accent-green:#34d399;
  --text-primary:#eaeaf4;
  --text-secondary:#9898b8;
  --text-muted:#5a5a7a;
  --nav-h:64px;
  --container:1400px;
  --font-display:'Syne',sans-serif;
  --font-cn:'Noto Sans SC',sans-serif;
  --font-mono:'Orbitron',monospace;
}

/* ===== BG ===== */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(0,212,255,0.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,212,255,0.018) 1px,transparent 1px);
  background-size:90px 90px;
  mask-image:radial-gradient(ellipse at 50% 40%,black 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%,black 20%,transparent 75%);
}
.bg-orb{position:absolute;border-radius:50%;filter:blur(160px);opacity:0.08;animation:orbF 25s ease-in-out infinite alternate}
.bg-orb-1{width:800px;height:800px;background:var(--accent-cyan);top:-350px;left:-250px}
.bg-orb-2{width:700px;height:700px;background:var(--accent-fire);bottom:-300px;right:-250px;animation-delay:-8s}
.bg-orb-3{width:500px;height:500px;background:var(--accent-purple);top:35%;left:55%;animation-delay:-15s;opacity:0.06}
@keyframes orbF{0%{transform:translate(0,0) scale(1)}50%{transform:translate(50px,-40px) scale(1.06)}100%{transform:translate(-30px,30px) scale(0.97)}}
.bg-noise{position:absolute;inset:0;opacity:0.025;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:256px 256px}

.container{max-width:var(--container);margin:0 auto;padding:0 40px}
@media(max-width:768px){.container{padding:0 20px}}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(5,5,16,0.7);
  backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);
  border-bottom:1px solid rgba(255,255,255,0.04);
  transition:all 0.4s;
}
.nav.scrolled{background:rgba(5,5,16,0.92);box-shadow:0 4px 40px rgba(0,0,0,0.5)}
.nav .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.nav-logo{
  font-family:var(--font-cn);font-weight:900;font-size:1.2rem;
  background:linear-gradient(135deg,var(--accent-cyan),var(--accent-fire));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  white-space:nowrap;letter-spacing:0.08em;
}
.nav-links{display:flex;gap:2px;align-items:center}
.nav-links a{
  padding:7px 16px;font-size:0.78rem;font-weight:500;
  color:var(--text-secondary);border-radius:8px;white-space:nowrap;
  transition:color 0.3s,background 0.3s;letter-spacing:0.03em;
}
.nav-links a:hover,.nav-links a.active{color:var(--accent-cyan);background:rgba(0,212,255,0.06)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-primary);border-radius:1px;transition:all 0.3s}
@media(max-width:1100px){
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;
    flex-direction:column;gap:4px;padding:32px;
    background:rgba(5,5,16,0.97);backdrop-filter:blur(30px);
    transform:translateX(100%);transition:transform 0.4s cubic-bezier(0.4,0,0.2,1);
    align-items:flex-start;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:1rem;padding:14px 20px;width:100%}
  .nav-toggle{display:flex}
}

/* ===== HERO FULLSCREEN BANNER ===== */
.hero{
  position:relative;width:100%;height:100vh;min-height:600px;
  overflow:hidden;z-index:1;
}
.banner-slides{position:absolute;inset:0;z-index:0}
.banner-slide{
  position:absolute;inset:0;
  opacity:0;transition:opacity 1.2s ease;z-index:0;
}
.banner-slide.active{opacity:1;z-index:1}
.banner-slide-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}

/* Banner gradient backgrounds */
.banner-bg-1{
  background:
    radial-gradient(ellipse at 25% 55%,rgba(0,212,255,0.22),transparent 55%),
    radial-gradient(ellipse at 75% 35%,rgba(168,85,247,0.18),transparent 50%),
    radial-gradient(ellipse at 50% 80%,rgba(255,123,58,0.12),transparent 45%),
    linear-gradient(160deg,#050510 0%,#0a0a2e 40%,#0d0520 100%);
}
.banner-bg-2{
  background:
    radial-gradient(ellipse at 70% 40%,rgba(255,123,58,0.22),transparent 55%),
    radial-gradient(ellipse at 20% 65%,rgba(255,209,102,0.15),transparent 50%),
    radial-gradient(ellipse at 50% 20%,rgba(52,211,153,0.1),transparent 45%),
    linear-gradient(160deg,#050510 0%,#100a05 40%,#0d0a18 100%);
}
.banner-bg-3{
  background:
    radial-gradient(ellipse at 60% 30%,rgba(52,211,153,0.2),transparent 55%),
    radial-gradient(ellipse at 25% 70%,rgba(0,212,255,0.18),transparent 50%),
    radial-gradient(ellipse at 80% 60%,rgba(168,85,247,0.12),transparent 45%),
    linear-gradient(160deg,#050510 0%,#050d18 40%,#0a1a28 100%);
}
.banner-bg-4{
  background:
    radial-gradient(ellipse at 40% 50%,rgba(168,85,247,0.2),transparent 55%),
    radial-gradient(ellipse at 75% 25%,rgba(0,212,255,0.15),transparent 50%),
    radial-gradient(ellipse at 20% 80%,rgba(255,123,58,0.12),transparent 45%),
    linear-gradient(160deg,#050510 0%,#0d0520 40%,#050a18 100%);
}

/* Banner pattern overlay */
.banner-slide-bg::after{
  content:'';position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,212,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at 50% 50%,black 20%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 50%,black 20%,transparent 70%);
  opacity:0.5;
}

/* Banner particles */
.banner-particles{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.particle{
  position:absolute;width:2px;height:2px;background:var(--accent-cyan);border-radius:50%;
  animation:particleFloat linear infinite;opacity:0;
}
@keyframes particleFloat{
  0%{opacity:0;transform:translateY(100vh) scale(0)}
  10%{opacity:0.8}
  90%{opacity:0.8}
  100%{opacity:0;transform:translateY(-10vh) scale(1)}
}

/* Hero content */
.hero-content{
  position:relative;z-index:10;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;height:100%;padding:0 40px;
}
.hero-brand-line{
  font-family:var(--font-cn);font-weight:900;
  font-size:clamp(3rem,7vw,5.5rem);line-height:1.15;
  letter-spacing:0.08em;
  background:linear-gradient(135deg,#ffffff 0%,var(--accent-cyan) 45%,var(--accent-fire) 100%);
  background-size:200% 200%;
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  animation:brandReveal 1s ease 0.3s forwards,gradientShift 10s ease infinite;
  opacity:0;margin-bottom:20px;
}
.hero-sub{
  font-family:var(--font-mono);font-size:0.72rem;font-weight:600;
  letter-spacing:0.35em;text-transform:uppercase;color:var(--accent-cyan);
  padding:10px 28px;border:1px solid rgba(0,212,255,0.2);border-radius:40px;
  background:rgba(0,212,255,0.04);margin-bottom:28px;
  opacity:0;animation:brandReveal 0.8s ease 0.7s forwards;
}
.hero-slogan{
  font-size:clamp(1.05rem,2.2vw,1.4rem);color:var(--text-muted);
  letter-spacing:0.12em;margin-bottom:52px;
  opacity:0;animation:brandReveal 0.8s ease 0.9s forwards;
}
.hero-slogan span{
  background:linear-gradient(90deg,var(--accent-gold),var(--accent-fire));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  font-weight:600;
  text-shadow:none;
}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 44px;border-radius:60px;
  font-weight:600;font-size:0.95rem;letter-spacing:0.06em;
  background:linear-gradient(135deg,rgba(0,212,255,0.12),rgba(168,85,247,0.12));
  border:1px solid rgba(0,212,255,0.25);color:var(--accent-cyan);
  transition:all 0.4s;
  opacity:0;animation:brandReveal 0.8s ease 1.1s forwards;
}
.hero-cta:hover{
  background:linear-gradient(135deg,rgba(0,212,255,0.22),rgba(168,85,247,0.22));
  box-shadow:0 0 25px rgba(0,212,255,0.15),0 0 60px rgba(0,212,255,0.05);
  transform:translateY(-2px);
}
.hero-cta svg{transition:transform 0.3s}
.hero-cta:hover svg{transform:translate(3px,-3px)}

/* Banner nav dots */
.banner-dots{
  position:absolute;bottom:48px;left:50%;transform:translateX(-50%);z-index:10;
  display:flex;gap:10px;align-items:center;
}
.banner-dot{
  width:8px;height:8px;border-radius:50%;
  background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.1);
  cursor:pointer;transition:all 0.4s;
}
.banner-dot.active{
  width:32px;border-radius:4px;
  background:var(--accent-cyan);box-shadow:0 0 12px rgba(0,212,255,0.4);
}

/* Banner side labels */
.banner-side-label{
  position:absolute;z-index:10;font-family:var(--font-mono);
  font-size:0.6rem;letter-spacing:0.25em;color:rgba(255,255,255,0.15);
  writing-mode:vertical-lr;
}
.banner-side-label.left{left:32px;bottom:120px}
.banner-side-label.right{right:32px;bottom:120px;transform:rotate(180deg)}
@media(max-width:768px){.banner-side-label{display:none}}

@keyframes brandReveal{from{opacity:0;transform:translateY(35px)}to{opacity:1;transform:translateY(0)}}
@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* ===== PAGE SYSTEM ===== */
.page{
  display:none;position:relative;z-index:1;
  min-height:calc(100vh - var(--nav-h));
  padding:calc(var(--nav-h) + 10px) 0 60px;
  animation:pageIn 0.5s ease;
}
.page.active{display:block}
@keyframes pageIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* Section headers */
.sec-hd{margin-bottom:48px;padding-top:30px}
.sec-num{font-family:var(--font-mono);font-size:0.65rem;font-weight:700;letter-spacing:0.3em;color:var(--accent-cyan);opacity:0.5;margin-bottom:14px;display:block}
.sec-title{font-family:var(--font-cn);font-weight:900;font-size:clamp(1.8rem,3.5vw,2.6rem);line-height:1.2;margin-bottom:10px}
.sec-sub{font-family:var(--font-mono);font-size:0.7rem;color:var(--text-muted);letter-spacing:0.18em;margin-bottom:16px}
.sec-line{width:50px;height:2px;background:linear-gradient(90deg,var(--accent-cyan),var(--accent-fire));border-radius:1px;margin-bottom:16px}
.sec-desc{font-size:0.9rem;color:var(--text-secondary);line-height:1.8;max-width:600px}

/* ===== GLASS ===== */
.glass{
  background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);border-radius:16px;
  transition:all 0.45s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden;
}
.glass::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,0.02) 45%,rgba(255,255,255,0.05) 50%,rgba(255,255,255,0.02) 55%,transparent 60%);
  background-size:250% 100%;background-position:200% 0;
  pointer-events:none;opacity:0;transition:opacity 0.4s;
}
.glass:hover{
  background:var(--glass-bg-hover);border-color:var(--glass-border-hover);
  transform:translateY(-4px);
  box-shadow:0 24px 80px rgba(0,0,0,0.35),0 0 40px rgba(0,212,255,0.04);
}
.glass:hover::before{opacity:1;animation:sweep 1.8s ease forwards}
@keyframes sweep{from{background-position:200% 0}to{background-position:-50% 0}}

/* ===== TAGS ===== */
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:6px;
  font-size:0.7rem;font-weight:600;letter-spacing:0.04em;
  background:rgba(0,212,255,0.07);color:var(--accent-cyan);border:1px solid rgba(0,212,255,0.12);
}
.tag-cyan{background:rgba(0,212,255,0.07);color:var(--accent-cyan);border-color:rgba(0,212,255,0.12)}
.tag-purple{background:rgba(168,85,247,0.07);color:var(--accent-purple);border-color:rgba(168,85,247,0.12)}
.tag-gold{background:rgba(255,209,102,0.07);color:var(--accent-gold);border-color:rgba(255,209,102,0.12)}
.tag-green{background:rgba(52,211,153,0.07);color:var(--accent-green);border-color:rgba(52,211,153,0.12)}
.tag-fire{background:rgba(255,123,58,0.07);color:var(--accent-fire);border-color:rgba(255,123,58,0.12)}
.tag-rose{background:rgba(244,63,94,0.07);color:#f43f5e;border-color:rgba(244,63,94,0.12)}
.tag-blue{background:rgba(59,130,246,0.07);color:#3b82f6;border-color:rgba(59,130,246,0.12)}

/* ===== PAGE 1: HOMEPAGE / ACTIVITIES WATERFALL ===== */
.waterfall{display:flex;flex-direction:column;gap:28px;width:100%;max-width:var(--container);margin:0 auto}
.wf-card{
  display:grid;grid-template-columns:1.1fr 1.6fr;min-height:260px;
  border-radius:20px;overflow:hidden;
}

.wf-img{
  position:relative;min-height:220px;overflow:hidden;
  display:flex;align-items:flex-end;padding:28px;
}
.wf-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(5,5,16,0.85) 0%,rgba(5,5,16,0.2) 50%,transparent 100%);
}
.wf-img-tag{
  position:relative;z-index:2;
  font-family:var(--font-mono);font-size:0.58rem;font-weight:700;
  letter-spacing:0.25em;text-transform:uppercase;color:var(--accent-cyan);
}
.wf-body{padding:32px 36px;display:flex;flex-direction:column;justify-content:center}
.wf-body h3{
  font-family:var(--font-cn);font-weight:800;
  font-size:1.25rem;line-height:1.5;margin-bottom:14px;
}
.wf-meta{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:14px;font-size:0.76rem;color:var(--text-muted)}
.wf-meta-item{display:flex;align-items:center;gap:6px}
.wf-meta-item svg{width:14px;height:14px;flex-shrink:0}
.wf-desc{font-size:0.88rem;color:var(--text-secondary);line-height:1.8;margin-bottom:18px}
.wf-tags{display:flex;flex-wrap:wrap;gap:8px}

/* Waterfall image gradients */
.wf-g1{background:radial-gradient(circle at 20% 70%,rgba(0,212,255,0.3),transparent 55%),radial-gradient(circle at 80% 20%,rgba(168,85,247,0.25),transparent 50%),linear-gradient(135deg,#0a0a28,#1a0a3e)}
.wf-g2{background:radial-gradient(circle at 70% 30%,rgba(255,209,102,0.3),transparent 55%),radial-gradient(circle at 20% 70%,rgba(255,123,58,0.2),transparent 50%),linear-gradient(135deg,#1a0f05,#0a0618)}
.wf-g3{background:radial-gradient(circle at 30% 60%,rgba(52,211,153,0.3),transparent 55%),radial-gradient(circle at 80% 20%,rgba(0,212,255,0.2),transparent 50%),linear-gradient(135deg,#051a14,#0a2e1a)}
.wf-g4{background:radial-gradient(circle at 50% 40%,rgba(168,85,247,0.3),transparent 55%),radial-gradient(circle at 80% 80%,rgba(0,212,255,0.15),transparent 50%),linear-gradient(135deg,#0d0a28,#1a0a3e)}
.wf-g5{background:radial-gradient(circle at 40% 40%,rgba(255,123,58,0.3),transparent 55%),radial-gradient(circle at 70% 70%,rgba(255,209,102,0.2),transparent 50%),linear-gradient(135deg,#1a0f05,#0a0618)}
.wf-g6{background:radial-gradient(circle at 60% 30%,rgba(0,212,255,0.3),transparent 55%),radial-gradient(circle at 30% 70%,rgba(52,211,153,0.2),transparent 50%),linear-gradient(135deg,#05101a,#0a1a2e)}

/* 立即报名按钮 - 玻璃质感 */
.wf-register-btn{
  margin-left:auto;padding:8px 22px;border-radius:12px;border:none;
  background:rgba(0,212,255,0.1);backdrop-filter:blur(12px);
  border:1px solid rgba(0,212,255,0.3);color:var(--accent-cyan);
  font-family:var(--font-cn);font-size:0.82rem;font-weight:600;
  cursor:pointer;transition:all 0.35s ease;position:relative;overflow:hidden;
}
.wf-register-btn::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,212,255,0.15),rgba(0,212,255,0.05));
  opacity:0;transition:opacity 0.35s;
}
.wf-register-btn:hover{
  background:rgba(0,212,255,0.2);border-color:rgba(0,212,255,0.5);
  transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,212,255,0.15);
}
.wf-register-btn:hover::before{opacity:1}

/* ===== 报名弹窗 ===== */
.register-modal{
  position:fixed;inset:0;z-index:1000;
  display:none;align-items:center;justify-content:center;
}
.register-modal.active{display:flex}
.register-modal-bg{
  position:absolute;inset:0;
  background:rgba(5,5,16,0.85);backdrop-filter:blur(8px);
}
.register-modal-content{
  position:relative;z-index:1;width:90%;max-width:440px;
  border-radius:24px;padding:40px 36px 32px;
  background:rgba(255,255,255,0.03);backdrop-filter:blur(40px);
  border:1px solid rgba(255,255,255,0.08);
  box-shadow:0 40px 80px rgba(0,0,0,0.4);
}
.register-modal-close{
  position:absolute;top:16px;right:20px;
  background:none;border:none;color:var(--text-muted);
  font-size:28px;cursor:pointer;transition:color 0.3s;
}
.register-modal-close:hover{color:var(--text-primary)}
.register-modal-title{
  font-family:var(--font-cn);font-size:1.6rem;font-weight:700;
  text-align:center;margin-bottom:6px;
  background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.register-modal-subtitle{
  text-align:center;color:var(--text-secondary);font-size:0.9rem;
  margin-bottom:24px;
}
.register-form-group{margin-bottom:18px}
.register-form-group label{
  display:block;font-size:0.82rem;color:var(--text-muted);margin-bottom:6px;
}
.register-form-group input{
  width:100%;padding:12px 16px;border-radius:12px;
  background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.1);
  color:var(--text-primary);font-size:0.95rem;outline:none;
  transition:border-color 0.3s,box-shadow 0.3s;
}
.register-form-group input:focus{
  border-color:rgba(0,212,255,0.4);
  box-shadow:0 0 0 3px rgba(0,212,255,0.08);
}
.register-form-group input::placeholder{color:rgba(255,255,255,0.25)}
.register-submit-btn{
  width:100%;padding:14px;border-radius:14px;border:none;
  background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
  color:#fff;font-family:var(--font-cn);font-size:1rem;font-weight:600;
  cursor:pointer;transition:all 0.35s;position:relative;overflow:hidden;
}
.register-submit-btn:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(0,212,255,0.25);
}
.register-qrcode-section{margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.06)}
.register-qrcode-hint{
  text-align:center;color:var(--text-muted);font-size:0.78rem;margin-bottom:14px;
}
.register-qrcode-box{
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.register-qrcode-placeholder{
  width:120px;height:120px;border-radius:12px;
  background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.1);
  display:flex;align-items:center;justify-content:center;color:var(--text-muted);
}
.register-qrcode-text{
  text-align:center;color:var(--text-secondary);font-size:0.78rem;
  max-width:200px;line-height:1.6;
}
.register-success{
  display:none;flex-direction:column;align-items:center;gap:14px;
  text-align:center;padding:20px 0;
}
.register-success.active{display:flex}
.register-success h3{
  font-family:var(--font-cn);font-size:1.3rem;font-weight:700;color:var(--text-primary);
}
.register-success p{color:var(--text-secondary);font-size:0.88rem;}

/* 置顶标签 */
.wf-topped-tag{
  position:absolute;top:16px;right:16px;z-index:3;
  padding:4px 12px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent-fire),var(--accent-gold));
  color:#fff;font-size:0.72rem;font-weight:700;
  letter-spacing:0.05em;
}

/* 活动状态标签 */
.wf-status-tag{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 10px;border-radius:6px;
  font-size:0.7rem;font-weight:600;letter-spacing:0.03em;
}
.wf-status-tag::before{
  content:'';width:6px;height:6px;border-radius:50%;
}
.wf-status-ended{
  background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.4);
  border:1px solid rgba(255,255,255,0.1);
}
.wf-status-ended::before{background:rgba(255,255,255,0.3)}
.wf-status-ongoing{
  background:rgba(52,211,153,0.15);color:var(--accent-green);
  border:1px solid rgba(52,211,153,0.3);
  animation:pulse-green 2s infinite;
}
.wf-status-ongoing::before{background:var(--accent-green);box-shadow:0 0 6px var(--accent-green)}
.wf-status-upcoming{
  background:rgba(0,212,255,0.12);color:var(--accent-cyan);
  border:1px solid rgba(0,212,255,0.25);
}
.wf-status-upcoming::before{background:var(--accent-cyan)}

@keyframes pulse-green{
  0%,100%{box-shadow:0 0 0 0 rgba(52,211,153,0.3)}
  50%{box-shadow:0 0 0 4px rgba(52,211,153,0)}
}

@media(max-width:800px){
  .wf-card{grid-template-columns:1fr}
  .wf-img{min-height:200px}
}

/* ===== PAGE 2: TALKS ===== */
.talks-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.talk-card{border-radius:16px;overflow:hidden}
.talk-thumb{position:relative;width:100%;padding-top:56.25%;overflow:hidden}
.talk-thumb-link{display:block;width:100%;height:100%;position:absolute;top:0;left:0;z-index:1}
.talk-thumb-bg{position:absolute;inset:0}
.talk-body{padding:28px}
.talk-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:68px;height:68px;border-radius:50%;
  background:rgba(0,212,255,0.12);backdrop-filter:blur(10px);
  border:2px solid rgba(0,212,255,0.3);
  display:flex;align-items:center;justify-content:center;transition:all 0.4s;
}
.talk-play svg{width:26px;height:26px;margin-left:3px;fill:currentColor;color:var(--accent-cyan)}
.talk-card:hover .talk-play{background:rgba(0,212,255,0.25);box-shadow:0 0 30px rgba(0,212,255,0.2);transform:translate(-50%,-50%) scale(1.08)}
.talk-ep{
  position:absolute;top:16px;left:16px;z-index:2;
  font-family:var(--font-mono);font-size:0.6rem;font-weight:700;letter-spacing:0.2em;color:var(--accent-cyan);
  padding:5px 14px;border-radius:6px;background:rgba(5,5,16,0.65);backdrop-filter:blur(10px);border:1px solid rgba(0,212,255,0.15);
}
.talk-dur{position:absolute;bottom:12px;right:12px;z-index:2;font-size:0.72rem;font-weight:600;color:#fff;padding:3px 10px;border-radius:5px;background:rgba(0,0,0,0.6)}
.talk-body{padding:28px}
.talk-guest{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.talk-av{
  width:50px;height:50px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;
  border:2px solid rgba(0,212,255,0.2);
}
.talk-guest-info h4{font-family:var(--font-cn);font-weight:700;font-size:0.95rem}
.talk-guest-info p{font-size:0.75rem;color:var(--text-muted)}
.talk-body h3{font-family:var(--font-cn);font-weight:700;font-size:1.1rem;line-height:1.5;margin-bottom:10px}
.talk-body .talk-desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.talk-tags{display:flex;flex-wrap:wrap;gap:6px}

.tg1{background:radial-gradient(circle at 30% 50%,rgba(168,85,247,0.3),transparent 60%),radial-gradient(circle at 80% 30%,rgba(0,212,255,0.2),transparent 50%),linear-gradient(135deg,#0d0a28,#1a0533)}
.tg2{background:radial-gradient(circle at 70% 40%,rgba(255,123,58,0.25),transparent 60%),radial-gradient(circle at 20% 70%,rgba(255,209,102,0.2),transparent 50%),linear-gradient(135deg,#1a0f05,#0d0a18)}
.tg3{background:radial-gradient(circle at 40% 60%,rgba(52,211,153,0.25),transparent 60%),radial-gradient(circle at 80% 20%,rgba(0,212,255,0.2),transparent 50%),linear-gradient(135deg,#051a14,#0a1828)}
.tg4{background:radial-gradient(circle at 60% 30%,rgba(0,212,255,0.3),transparent 60%),radial-gradient(circle at 30% 80%,rgba(168,85,247,0.2),transparent 50%),linear-gradient(135deg,#050d1a,#1a0a3e)}

/* ===== TALK SINGLE PAGE ===== */
.talk-single-page{min-height:calc(100vh - var(--nav-h));padding-top:var(--nav-h)}
.talk-video-section{position:relative;width:100%;background:#000}
.talk-video-container{position:relative;width:100%;max-width:1400px;margin:0 auto;padding-top:56.25%;background:#0a0a0f}
.talk-video-iframe{position:absolute;inset:0;width:100%;height:100%;border:none}
.talk-video-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#666}
.talk-video-poster{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.talk-video-poster::after{content:'';position:absolute;inset:0;background:rgba(0,0,0,0.5)}
.talk-play-btn{position:relative;z-index:1;width:80px;height:80px;border-radius:50%;background:rgba(0,212,255,0.15);border:2px solid rgba(0,212,255,0.4);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--accent-cyan);transition:all 0.3s ease}
.talk-play-btn:hover{background:rgba(0,212,255,0.25);box-shadow:0 0 40px rgba(0,212,255,0.3);transform:scale(1.1)}
.talk-play-btn svg{width:32px;height:32px;margin-left:4px;fill:currentColor}
.talk-episode-tag{position:absolute;top:16px;left:16px;z-index:2;font-size:0.7rem;font-weight:700;letter-spacing:0.15em;color:#fff;padding:6px 14px;border-radius:6px;background:rgba(0,212,255,0.25);border:1px solid rgba(0,212,255,0.4)}
.talk-duration-tag{position:absolute;bottom:16px;right:16px;z-index:2;font-size:0.75rem;font-weight:600;color:#fff;padding:4px 12px;border-radius:6px;background:rgba(0,0,0,0.6)}

.talk-content-section{padding:60px 0}
.talk-content-inner{max-width:900px;margin:0 auto}
.talk-person-card{display:flex;align-items:center;gap:20px;padding:24px 32px;border-radius:16px;margin-bottom:32px}
.talk-person-avatar{width:56px;height:56px;border-radius:50%;background:rgba(168,85,247,0.15);border:1px solid rgba(168,85,247,0.3);display:flex;align-items:center;justify-content:center;font-family:var(--font-cn);font-size:1.4rem;font-weight:700;color:var(--accent-purple)}
.talk-person-info h3{font-family:var(--font-cn);font-weight:700;font-size:1.1rem;margin-bottom:2px}
.talk-person-info p{font-size:0.82rem;color:var(--text-muted)}

.talk-title{font-family:var(--font-cn);font-weight:900;font-size:clamp(1.5rem,4vw,2.4rem);line-height:1.3;margin-bottom:20px}
.talk-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.talk-tag{display:inline-flex;padding:4px 14px;border-radius:20px;font-size:0.78rem;font-weight:600}
.talk-tag.tag-cyan{background:rgba(0,212,255,0.07);color:var(--accent-cyan);border:1px solid rgba(0,212,255,0.12)}
.talk-tag.tag-purple{background:rgba(168,85,247,0.07);color:var(--accent-purple);border:1px solid rgba(168,85,247,0.12)}
.talk-tag.tag-gold{background:rgba(255,209,102,0.07);color:var(--accent-gold);border:1px solid rgba(255,209,102,0.12)}
.talk-tag.tag-green{background:rgba(52,211,153,0.07);color:var(--accent-green);border:1px solid rgba(52,211,153,0.12)}
.talk-tag.tag-fire{background:rgba(255,123,58,0.07);color:var(--accent-fire);border:1px solid rgba(255,123,58,0.12)}
.talk-tag.tag-rose{background:rgba(244,63,94,0.07);color:#f43f5e;border:1px solid rgba(244,63,94,0.12)}
.talk-tag.tag-blue{background:rgba(59,130,246,0.07);color:#3b82f6;border:1px solid rgba(59,130,246,0.12)}
.talk-excerpt{font-size:1.05rem;color:var(--text-secondary);line-height:1.9;margin-bottom:32px;padding:24px;background:rgba(255,255,255,0.03);border-radius:12px;border-left:3px solid var(--accent-cyan)}
.talk-body{font-size:0.95rem;color:var(--text-secondary);line-height:2;margin-bottom:40px}
.talk-body p{margin-bottom:1.5em}
.talk-body h2{font-family:var(--font-cn);font-weight:700;font-size:1.4rem;margin:2em 0 1em;color:#fff}
.talk-body h3{font-weight:600;font-size:1.15rem;margin:1.5em 0 0.8em;color:#fff}
.talk-body a{color:var(--accent-cyan);text-decoration:none;border-bottom:1px solid transparent;transition:border-color 0.2s}
.talk-body a:hover{border-color:var(--accent-cyan)}
.talk-body img{max-width:100%;height:auto;border-radius:8px;margin:1em 0}

.talk-back{margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.06)}
.btn-back{display:inline-flex;align-items:center;gap:8px;color:var(--accent-cyan);font-size:0.9rem;font-weight:600;text-decoration:none;padding:12px 24px;border-radius:10px;background:rgba(0,212,255,0.08);border:1px solid rgba(0,212,255,0.2);transition:all 0.3s ease}
.btn-back:hover{background:rgba(0,212,255,0.15);box-shadow:0 0 20px rgba(0,212,255,0.1)}
.btn-back svg{width:18px;height:18px}

.no-talks{text-align:center;padding:60px 0;color:var(--text-muted)}

@media(max-width:800px){
  .talks-grid{grid-template-columns:1fr}
  .talk-content-section{padding:30px 0}
  .talk-person-card{padding:16px 20px}
  .talk-person-avatar{width:44px;height:44px;font-size:1.1rem}
  .talk-video-placeholder p{font-size:0.85rem}
}

/* ===== PAGE 3: POLICY ===== */
.policy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.policy-card{padding:34px;border-radius:16px}
.policy-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:22px;
}
.pi-cyan{background:rgba(0,212,255,0.08);border:1px solid rgba(0,212,255,0.15)}
.pi-fire{background:rgba(255,123,58,0.08);border:1px solid rgba(255,123,58,0.15)}
.pi-gold{background:rgba(255,209,102,0.08);border:1px solid rgba(255,209,102,0.15)}
.pi-green{background:rgba(52,211,153,0.08);border:1px solid rgba(52,211,153,0.15)}
.policy-dept{font-size:0.73rem;color:var(--text-muted);margin-bottom:10px;letter-spacing:0.05em}
.policy-card h3{font-family:var(--font-cn);font-weight:700;font-size:1.15rem;line-height:1.4;margin-bottom:14px}
.policy-summary{font-size:0.88rem;color:var(--text-secondary);line-height:1.7;margin-bottom:20px}
.policy-meta{display:flex;gap:18px;font-size:0.74rem;color:var(--text-muted);margin-bottom:20px;flex-wrap:wrap}
.policy-meta-item{display:flex;align-items:center;gap:5px}
.policy-link{display:inline-flex;align-items:center;gap:6px;font-size:0.82rem;font-weight:600;color:var(--accent-cyan);transition:gap 0.3s}
.policy-link:hover{gap:12px}
@media(max-width:800px){.policy-grid{grid-template-columns:1fr}}

/* ===== PAGE 4: ANALYSIS ===== */
.analysis-feat{margin-bottom:32px}
.analysis-feat .glass{display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.analysis-feat-img{
  min-height:300px;
  background:radial-gradient(circle at 40% 50%,rgba(0,212,255,0.2),transparent 60%),radial-gradient(circle at 70% 30%,rgba(168,85,247,0.15),transparent 50%),linear-gradient(135deg,#0a0a2e,#1a0533);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.analysis-feat-img .fb{
  position:absolute;top:20px;left:20px;
  font-family:var(--font-mono);font-size:0.58rem;font-weight:700;letter-spacing:0.25em;color:var(--accent-fire);
  padding:5px 14px;border-radius:6px;background:rgba(255,123,58,0.1);border:1px solid rgba(255,123,58,0.2);
}
.analysis-feat-body{padding:40px;display:flex;flex-direction:column;justify-content:center}
.analysis-feat-body .tag{margin-bottom:16px;width:fit-content}
.analysis-feat-body h3{font-family:var(--font-cn);font-weight:800;font-size:1.5rem;line-height:1.4;margin-bottom:16px}
.analysis-feat-body p{font-size:0.92rem;color:var(--text-secondary);line-height:1.8;margin-bottom:24px}
.rd-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--accent-cyan);font-size:0.88rem;transition:gap 0.3s}
.rd-more:hover{gap:14px}
.analysis-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.analysis-card{display:flex;flex-direction:column;border-radius:16px;position:relative;overflow:hidden}
.analysis-card-thumb{height:160px;overflow:hidden}
.analysis-card-thumb svg{width:60px;height:60px;display:block;margin:0 auto}
.analysis-card-body{padding:20px;flex:1;display:flex;flex-direction:column}
.analysis-card-body .tag{margin-bottom:10px}
.analysis-card-body h4{font-family:var(--font-cn);font-weight:700;font-size:1rem;line-height:1.5;margin-bottom:10px}
.analysis-card-body p{font-size:0.82rem;color:var(--text-secondary);line-height:1.7;margin-bottom:12px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.analysis-card-meta{display:flex;justify-content:space-between;font-size:0.72rem;color:var(--text-muted)}
.analysis-card-link{position:absolute;inset:0;z-index:2;display:block;text-indent:-9999px;overflow:hidden}
@media(max-width:1024px){
  .analysis-feat .glass{grid-template-columns:1fr}
  .analysis-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){.analysis-grid{grid-template-columns:1fr}}

/* ===== PAGE 5: HOT FIELDS ===== */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:48px;
  padding:24px;border-radius:16px;background:var(--glass-bg);backdrop-filter:blur(16px);border:1px solid var(--glass-border);
}
.filter-btn{
  padding:8px 20px;border-radius:8px;font-size:0.82rem;font-weight:600;
  color:var(--text-secondary);background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.05);transition:all 0.3s;
}
.filter-btn:hover{color:var(--accent-cyan);border-color:rgba(0,212,255,0.15);background:rgba(0,212,255,0.05)}
.filter-btn.active{color:var(--accent-cyan);border-color:rgba(0,212,255,0.35);background:rgba(0,212,255,0.08);box-shadow:0 0 15px rgba(0,212,255,0.08)}
.fields-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.field-card{padding:28px;border-radius:16px;transition:all 0.5s}
.field-card .tag{margin-bottom:14px}
.field-card h4{font-family:var(--font-cn);font-weight:700;font-size:1.02rem;line-height:1.5;margin-bottom:10px}
.field-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.field-footer{display:flex;justify-content:space-between;font-size:0.74rem;color:var(--text-muted)}
.field-card.hide{opacity:0;transform:scale(0.95);pointer-events:none;position:absolute}
.field-card-link{position:absolute;inset:0;z-index:2;display:block;text-indent:-9999px;overflow:hidden}
@media(max-width:1024px){.fields-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.fields-grid{grid-template-columns:1fr}}

/* ===== PAGE 6: RESOURCES ===== */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.res-card{padding:28px;border-radius:16px}
.res-icon{
  width:54px;height:54px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:0.68rem;font-weight:800;letter-spacing:0.1em;margin-bottom:20px;
}
.ri-pdf{background:rgba(255,123,58,0.1);color:var(--accent-fire);border:1px solid rgba(255,123,58,0.15)}
.ri-xls{background:rgba(52,211,153,0.1);color:var(--accent-green);border:1px solid rgba(52,211,153,0.15)}
.ri-ppt{background:rgba(255,209,102,0.1);color:var(--accent-gold);border:1px solid rgba(255,209,102,0.15)}
.ri-doc{background:rgba(0,212,255,0.1);color:var(--accent-cyan);border:1px solid rgba(0,212,255,0.15)}
.res-pdf{background:rgba(255,123,58,0.1);color:var(--accent-fire);border:1px solid rgba(255,123,58,0.15)}
.res-xls{background:rgba(52,211,153,0.1);color:var(--accent-green);border:1px solid rgba(52,211,153,0.15)}
.res-doc{background:rgba(0,212,255,0.1);color:var(--accent-cyan);border:1px solid rgba(0,212,255,0.15)}
.res-ppt{background:rgba(255,209,102,0.1);color:var(--accent-gold);border:1px solid rgba(255,209,102,0.15)}
.res-zip{background:rgba(168,85,247,0.1);color:var(--accent-purple);border:1px solid rgba(168,85,247,0.15)}
.res-card h4{font-family:var(--font-cn);font-weight:700;font-size:1.02rem;line-height:1.4;margin-bottom:10px}
.res-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin-bottom:14px}
.res-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.res-footer{display:flex;justify-content:space-between;align-items:center}
.res-size{font-size:0.72rem;color:var(--text-muted)}
.res-dl{
  display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;
  font-size:0.78rem;font-weight:600;color:var(--accent-cyan);
  background:rgba(0,212,255,0.05);border:1px solid rgba(0,212,255,0.12);transition:all 0.3s;
}
.res-dl:hover{background:rgba(0,212,255,0.12);box-shadow:0 0 15px rgba(0,212,255,0.1)}
@media(max-width:1024px){.res-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.res-grid{grid-template-columns:1fr}}

/* ===== PAGE 7: KNOWLEDGE ===== */
.know-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.know-card{border-radius:16px;overflow:hidden}
.know-img{height:200px;position:relative;overflow:hidden;background-size:cover;background-position:center}
.know-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(5,5,16,0.8),transparent 70%)}
.know-img-default{background:linear-gradient(135deg,rgba(0,212,255,0.08) 0%,rgba(168,85,247,0.08) 100%)}
.know-rt{position:absolute;top:16px;right:16px;z-index:2;font-size:0.7rem;font-weight:600;color:var(--text-secondary);padding:4px 12px;border-radius:6px;background:rgba(5,5,16,0.55);backdrop-filter:blur(8px)}
.know-body{padding:28px}
.know-body .tag{margin-bottom:14px}
.know-body h4{font-family:var(--font-cn);font-weight:700;font-size:1.08rem;line-height:1.5;margin-bottom:10px}
.know-body p{font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.know-meta{display:flex;justify-content:space-between;align-items:center;font-size:0.74rem;color:var(--text-muted)}
.know-author{display:flex;align-items:center;gap:8px}
.author-av{
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:0.7rem;font-weight:700;
  background:rgba(0,212,255,0.08);border:1px solid rgba(0,212,255,0.15);color:var(--accent-cyan);
}
.kg1{background:radial-gradient(circle at 30% 40%,rgba(0,212,255,0.2),transparent 60%),radial-gradient(circle at 80% 70%,rgba(168,85,247,0.15),transparent 50%),linear-gradient(135deg,#050d1a,#0d0a28)}
.kg2{background:radial-gradient(circle at 60% 30%,rgba(255,209,102,0.2),transparent 60%),radial-gradient(circle at 30% 80%,rgba(255,123,58,0.15),transparent 50%),linear-gradient(135deg,#1a0f05,#0a0618)}
.kg3{background:radial-gradient(circle at 50% 50%,rgba(52,211,153,0.2),transparent 60%),radial-gradient(circle at 20% 20%,rgba(0,212,255,0.15),transparent 50%),linear-gradient(135deg,#051a14,#0a1828)}
.kg4{background:radial-gradient(circle at 70% 60%,rgba(168,85,247,0.25),transparent 60%),radial-gradient(circle at 20% 30%,rgba(0,212,255,0.15),transparent 50%),linear-gradient(135deg,#0d0a28,#1a0533)}
.kg5{background:radial-gradient(circle at 40% 50%,rgba(255,123,58,0.2),transparent 60%),radial-gradient(circle at 80% 20%,rgba(255,209,102,0.15),transparent 50%),linear-gradient(135deg,#1a1005,#0a0618)}
@media(max-width:800px){.know-grid{grid-template-columns:1fr}}

/* ===== PAGE 8: TECH ===== */
.tech-list{display:flex;flex-direction:column;gap:20px;max-width:960px}
.tech-item{padding:28px 32px;border-radius:16px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:start}
.tech-src{font-size:0.7rem;color:var(--text-muted);letter-spacing:0.08em;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.tech-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-cyan);display:inline-block}
.tech-item h4{font-family:var(--font-cn);font-weight:700;font-size:1.08rem;line-height:1.5;margin-bottom:10px}
.tech-item p{font-size:0.85rem;color:var(--text-secondary);line-height:1.7;margin-bottom:14px}
.tech-tags{display:flex;flex-wrap:wrap;gap:6px}
.tech-date{font-family:var(--font-mono);font-size:0.65rem;color:var(--text-muted);letter-spacing:0.05em;white-space:nowrap;text-align:right}
.tech-date span{display:block;color:var(--text-secondary);font-size:0.78rem;margin-bottom:2px}
@media(max-width:800px){.tech-item{grid-template-columns:1fr;padding:24px}.tech-date{text-align:left;margin-top:8px}}

/* ===== PAGE 9: FEATURED ===== */
.feat-page{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;min-height:70vh;position:relative;
}
.feat-page::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at 50% 50%,rgba(0,212,255,0.04),transparent 60%),
             radial-gradient(ellipse at 30% 70%,rgba(255,123,58,0.03),transparent 50%);
}
.feat-orbit{width:180px;height:180px;border-radius:50%;margin-bottom:48px;position:relative;display:flex;align-items:center;justify-content:center}
.feat-orbit::before{content:'';position:absolute;inset:-2px;border-radius:50%;border:1px solid rgba(0,212,255,0.12);animation:orbitSpin 15s linear infinite}
.feat-orbit::after{content:'';position:absolute;inset:-30px;border-radius:50%;border:1px dashed rgba(255,123,58,0.08);animation:orbitSpin 25s linear infinite reverse}
@keyframes orbitSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.feat-orbit-inner{
  width:110px;height:110px;border-radius:50%;
  background:linear-gradient(135deg,rgba(0,212,255,0.12),rgba(168,85,247,0.12));
  border:1px solid rgba(0,212,255,0.15);backdrop-filter:blur(20px);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-cn);font-weight:900;font-size:1.6rem;
  background:linear-gradient(135deg,var(--accent-cyan),var(--accent-fire));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.feat-title{font-family:var(--font-cn);font-weight:900;font-size:clamp(2rem,4.5vw,3.2rem);line-height:1.2;margin-bottom:20px;position:relative;z-index:1}
.feat-desc{font-size:1.02rem;color:var(--text-secondary);line-height:1.8;max-width:560px;margin-bottom:48px;position:relative;z-index:1}
.feat-btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:18px 52px;border-radius:60px;
  font-family:var(--font-cn);font-weight:700;font-size:1.05rem;letter-spacing:0.06em;
  background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
  color:#fff;position:relative;overflow:hidden;transition:all 0.4s;
  box-shadow:0 4px 30px rgba(0,212,255,0.15);z-index:1;
}
.feat-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--accent-fire),var(--accent-gold));opacity:0;transition:opacity 0.4s}
.feat-btn:hover{transform:translateY(-3px);box-shadow:0 8px 40px rgba(0,212,255,0.3)}
.feat-btn:hover::before{opacity:1}
.feat-btn span,.feat-btn svg{position:relative;z-index:1}
.feat-btn svg{transition:transform 0.3s}
.feat-btn:hover svg{transform:translate(4px,-4px)}

/* ===== FOOTER ===== */
.footer{
  padding:80px 0 40px;border-top:1px solid rgba(255,255,255,0.04);
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:60px}
.footer-brand h3{font-family:var(--font-cn);font-weight:900;font-size:1.3rem;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-fire));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}
.footer-brand p{font-size:0.88rem;color:var(--text-secondary);line-height:1.7;max-width:320px}
.footer-col h4{font-family:var(--font-cn);font-weight:700;font-size:0.82rem;margin-bottom:20px;color:var(--text-primary);letter-spacing:0.05em}
.footer-col a{display:block;font-size:0.82rem;color:var(--text-muted);padding:6px 0;transition:color 0.3s}
.footer-col a:hover{color:var(--accent-cyan)}
.footer-btm{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:32px;border-top:1px solid rgba(255,255,255,0.04);font-size:0.74rem;color:var(--text-muted);
}
.footer-icp{font-size:0.7rem;color:var(--text-muted)}.footer-icp a{color:inherit;text-decoration:none}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-btm{flex-direction:column;gap:8px;text-align:center}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}

.coostarts-toast{
  position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
  padding:14px 28px;border-radius:12px;
  background:rgba(0,212,255,0.12);color:var(--accent-cyan);
  border:1px solid rgba(0,212,255,0.2);backdrop-filter:blur(12px);
  font-size:0.9rem;font-weight:600;z-index:9999;
  animation:toastFadeIn 0.3s ease-out;
}
@keyframes toastFadeIn{
  from{opacity:0;transform:translate(-50%,-50%) scale(0.9)}
  to{opacity:1;transform:translate(-50%,-50%) scale(1)}
}