/* ========== RESET ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0a0a0a;
  --bg2:#111111;
  --bg3:#1a1a1a;
  --surface:#161616;
  --border:#262626;
  --text:#ffffff;
  --text2:#a0a0a0;
  --text3:#666666;
  --accent:#25F4EE;
  --red:#FE2C55;
  --r:20px;
  --rs:12px;
  --tr:.35s cubic-bezier(.4,0,.2,1)
}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Noto Sans SC',-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ========== NAV ========== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 24px;transition:background var(--tr),box-shadow var(--tr)}
.nav.scrolled{background:rgba(10,10,10,.92);backdrop-filter:blur(20px);box-shadow:0 1px 0 var(--border)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{display:flex;align-items:center;gap:10px}
.logo-img{height:32px;width:auto;display:block}
.logo-text{font-weight:700;font-size:18px;letter-spacing:.5px}
.nav-right{display:flex;align-items:center;gap:28px}
.nav-link{font-size:14px;color:var(--text2);transition:color var(--tr);position:relative}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link.active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background:var(--red);border-radius:1px}
.nav-burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:4px}
.nav-burger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:var(--tr)}
.nav-burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;background:rgba(10,10,10,.98);backdrop-filter:blur(20px);padding:16px 24px;z-index:99;transform:translateY(-10px);opacity:0;pointer-events:none;transition:var(--tr)}
.mobile-menu.open{transform:translateY(0);opacity:1;pointer-events:all}
.mobile-link{display:block;padding:14px 0;font-size:15px;color:var(--text2);border-bottom:1px solid var(--border);transition:color var(--tr)}
.mobile-link:hover{color:#fff}

/* ========== HERO ========== */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;padding-top:64px}
.hero-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-60%);width:700px;height:700px;background:radial-gradient(circle,rgba(254,44,85,.06) 0%,rgba(37,244,238,.04) 40%,transparent 70%);pointer-events:none}
.hero-content{position:relative;z-index:1;text-align:center;max-width:680px;margin:0 auto;padding:40px 0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);padding:8px 20px;border-radius:100px;font-size:13px;color:var(--text2);margin-bottom:32px}
.badge-dot{width:6px;height:6px;background:var(--red);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero-title{font-size:clamp(36px,7vw,64px);font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-.02em}
.gradient-text{background:linear-gradient(135deg,var(--red),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:18px;color:var(--text2);margin-bottom:28px;line-height:1.6}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:36px}
.hero-tag{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);padding:8px 16px;border-radius:100px;font-size:13px;color:var(--text2)}
.hero-tag i{color:var(--text3);font-size:11px}
.hero-actions{display:flex;align-items:center;justify-content:center;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:100px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:transform var(--tr),box-shadow var(--tr)}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(254,44,85,.3)}
.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}
.btn-ghost:hover{color:#fff;border-color:var(--text3)}
.hero-note{font-size:13px;color:var(--text3)}
.hero-scroll-hint{position:absolute;bottom:32px;left:50%;transform:translateX(-50%)}
.scroll-line{width:1px;height:40px;background:linear-gradient(to bottom,var(--text3),transparent);animation:scrollPulse 2s infinite}
@keyframes scrollPulse{0%{opacity:0;transform:scaleY(0);transform-origin:top}50%{opacity:1;transform:scaleY(1)}100%{opacity:0;transform:scaleY(0);transform-origin:bottom}}

/* ========== STATS ========== */
.stats{padding:48px 0;border-bottom:1px solid var(--border)}
.stats-inner{display:flex;align-items:center;justify-content:center;gap:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:32px 24px}
.stat{text-align:center;flex:1;padding:0 24px}
.stat-num{font-size:36px;font-weight:900;color:var(--text)}
.stat-suffix{font-size:16px;font-weight:700;color:var(--text)}
.stat-label{font-size:13px;color:var(--text3);margin-top:4px}
.stat-divider{width:1px;height:40px;background:var(--border)}

/* ========== SECTION ========== */
.section{padding:100px 0}
.section-dark{background:var(--bg2)}
.section-head{text-align:center;margin-bottom:56px}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--text2);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);padding:6px 16px;border-radius:100px;margin-bottom:16px;letter-spacing:1px}
.section-title{font-size:clamp(24px,4vw,38px);font-weight:800;line-height:1.3;margin-bottom:12px}
.section-desc{font-size:16px;color:var(--text2);max-width:520px;margin:0 auto}

/* ========== COMPARE ========== */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:36px;transition:transform var(--tr),border-color var(--tr)}
.compare-card:hover{transform:translateY(-4px)}
.compare-card.good{border-color:rgba(37,244,238,.15)}
.compare-card.good:hover{border-color:rgba(37,244,238,.35)}
.compare-card.bad{border-color:rgba(254,44,85,.12)}
.compare-card.bad:hover{border-color:rgba(254,44,85,.3)}
.compare-icon{font-size:24px;margin-bottom:16px}
.compare-card.bad .compare-icon{color:var(--red)}
.compare-card.good .compare-icon{color:var(--accent)}
.compare-card h3{font-size:18px;margin-bottom:20px;font-weight:700}
.compare-card ul li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:14px;color:var(--text2);line-height:1.5}
.compare-card ul li i{margin-top:3px;font-size:12px;flex-shrink:0}
.compare-card.bad li i{color:var(--red)}
.compare-card.good li i{color:var(--accent)}

/* ========== WHY ========== */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.why-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:36px;position:relative;overflow:hidden;transition:transform var(--tr),border-color var(--tr)}
.why-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.1)}
.why-num{position:absolute;top:16px;right:20px;font-size:56px;font-weight:900;color:rgba(255,255,255,.03);line-height:1}
.why-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:20px;background:rgba(255,255,255,.04);color:var(--text2)}
.why-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.why-card p{font-size:14px;color:var(--text2);line-height:1.7}

/* ========== ABOUT ========== */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.about-text h3{font-size:22px;font-weight:700;margin:12px 0 16px;line-height:1.4}
.about-school{font-size:13px;color:var(--red);font-weight:500}
.about-text p{font-size:14px;color:var(--text2);line-height:1.7;margin-bottom:12px}
.about-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.about-badge{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);padding:8px 14px;border-radius:8px;font-size:12px;color:var(--text2)}
.about-badge i{color:var(--text3);font-size:12px}
.about-partner{background:var(--surface);border:1px solid rgba(254,44,85,.15);border-radius:var(--rs);padding:18px 20px;margin-top:20px}
.about-partner-title{font-size:11px;font-weight:600;color:var(--red);letter-spacing:1px;margin-bottom:8px;text-transform:uppercase}
.about-partner-name{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}
.about-partner-desc{font-size:12px;color:var(--text2);line-height:1.6}
.about-stats-box{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-stat-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--rs);padding:24px;text-align:center}
.about-stat-num{font-size:24px;font-weight:800;color:var(--text)}
.about-stat-label{font-size:12px;color:var(--text3);margin-top:4px}

/* ========== SERVICES ========== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:32px;text-align:center;transition:transform var(--tr),border-color var(--tr)}
.service-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.1)}
.service-icon{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 18px;background:rgba(255,255,255,.04);color:var(--text2)}
.service-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.service-card p{font-size:13px;color:var(--text2);line-height:1.6}

/* ========== PRICING CARDS ========== */
.pricing-group-label{
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:24px;
  display:flex;align-items:center;gap:10px
}
.pricing-group-label i{
  font-size:18px;color:var(--red)
}
.pricing-grid{display:grid;gap:20px}
.pricing-grid-3{grid-template-columns:repeat(3,1fr)}
.pricing-grid-2{grid-template-columns:repeat(2,1fr)}

.pricing-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:36px 28px 28px;
  position:relative;
  display:flex;flex-direction:column;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr)
}
.pricing-card:hover{
  transform:translateY(-6px);
  border-color:rgba(255,255,255,.12);
  box-shadow:0 12px 40px rgba(0,0,0,.3)
}

/* Hot card */
.pricing-hot{
  border-color:rgba(254,44,85,.25)
}
.pricing-hot:hover{
  border-color:rgba(254,44,85,.5);
  box-shadow:0 12px 40px rgba(254,44,85,.1)
}

/* Recommend card */
.pricing-recommend{
  border-color:rgba(37,244,238,.2);
  background:linear-gradient(180deg,rgba(37,244,238,.03) 0%,var(--surface) 40%)
}
.pricing-recommend:hover{
  border-color:rgba(37,244,238,.45);
  box-shadow:0 12px 40px rgba(37,244,238,.08)
}

.pricing-badge{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  font-size:12px;font-weight:600;
  background:var(--red);color:#fff;
  padding:5px 20px;border-radius:100px;white-space:nowrap;
  z-index:2
}
.pricing-badge-recommend{
  background:linear-gradient(135deg,var(--accent),#1dd1d1);
  color:#000
}

.pricing-card-head{text-align:center;margin-bottom:20px}
.pricing-card-icon{
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;margin:0 auto 16px;
  background:rgba(254,44,85,.08);color:var(--red)
}
.pricing-hot .pricing-card-icon{background:rgba(254,44,85,.12)}
.pricing-recommend .pricing-card-icon{background:rgba(37,244,238,.1);color:var(--accent)}
.pricing-card-head h3{font-size:20px;font-weight:800;margin-bottom:4px}
.pricing-card-subtitle{font-size:13px;color:var(--text3)}

.pricing-card-price{
  text-align:center;
  padding:16px 0 20px;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  margin-bottom:20px
}
.price-original{
  display:block;font-size:13px;color:var(--text3);
  text-decoration:line-through;margin-bottom:6px
}
.price-current{
  font-size:48px;font-weight:900;color:var(--text);
  line-height:1
}
.price-symbol{font-size:24px;font-weight:700;vertical-align:super;margin-right:2px}
.price-unit{font-size:14px;color:var(--text3);font-weight:400;margin-left:4px}

.pricing-features{flex:1;margin-bottom:20px}
.pricing-features li{
  display:flex;align-items:flex-start;gap:10px;
  padding:7px 0;font-size:13px;color:var(--text2);line-height:1.6
}
.pricing-features li i{
  color:var(--accent);font-size:11px;margin-top:4px;flex-shrink:0
}
.pricing-recommend .pricing-features li i{color:var(--accent)}

.pricing-card-footer{
  font-size:12px;color:var(--text3);
  text-align:center;
  padding-top:16px;
  border-top:1px solid var(--border);
  line-height:1.5
}

/* Pricing Notes */
.pricing-notes{
  margin-top:40px;
  display:flex;flex-direction:column;gap:10px;
  align-items:center
}
.pricing-note-item{
  font-size:13px;color:var(--text3);
  display:flex;align-items:center;gap:8px
}
.pricing-note-item i{font-size:13px;color:var(--text3)}

/* ========== PROCESS ========== */
.process{display:flex;align-items:flex-start;justify-content:center;gap:0}
.process-step{text-align:center;flex:0 0 auto;width:140px}
.process-circle{width:56px;height:56px;font-weight:900;font-size:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;background:var(--surface);border:1px solid var(--border);color:var(--text)}
.process-step h4{font-size:16px;font-weight:700;margin-bottom:6px}
.process-step p{font-size:13px;color:var(--text2);line-height:1.5}
.process-line{width:60px;height:2px;background:var(--border);margin-top:28px;flex-shrink:0;position:relative}
.process-line::after{content:'';position:absolute;right:0;top:-2px;width:0;height:0;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:6px solid var(--border)}

/* ========== SUMMARY ========== */
.summary-quote{position:relative;text-align:center;max-width:640px;margin:0 auto 48px;padding:32px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r)}
.quote-mark{position:absolute;top:-16px;left:32px;font-size:64px;font-weight:900;background:linear-gradient(135deg,var(--red),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.summary-quote p{font-size:17px;line-height:2;color:var(--text2)}
.summary-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.summary-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rs);padding:28px 16px;text-align:center;transition:transform var(--tr),border-color var(--tr)}
.summary-card:hover{transform:translateY(-3px);border-color:rgba(255,255,255,.1)}
.summary-card i{font-size:28px;color:var(--text2);margin-bottom:12px}
.summary-card p{font-size:13px;color:var(--text2);line-height:1.5}

/* ========== FAQ ========== */
.faq{max-width:720px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--rs);margin-bottom:10px;overflow:hidden;background:var(--surface)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;background:none;border:none;color:var(--text);font-size:15px;font-weight:500;cursor:pointer;text-align:left;transition:color var(--tr)}
.faq-q i{color:var(--text3);font-size:13px;transition:transform var(--tr);flex-shrink:0;margin-left:12px}
.faq-q.active i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1)}
.faq-a p{padding:0 22px 18px;font-size:14px;color:var(--text2);line-height:1.7}

/* ========== FOOTER ========== */
.footer{padding:32px 0;border-top:1px solid var(--border);background:var(--bg)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-brand{display:flex;align-items:center;gap:8px;font-weight:700}
.footer-logo-img{height:24px;width:auto;display:block}
.footer-copy{font-size:13px;color:var(--text3)}
.footer-disclaimer{text-align:center;font-size:12px;color:var(--text3);margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}

/* ========== BTT ========== */
.btt{position:fixed;bottom:24px;right:24px;width:44px;height:44px;background:var(--surface);border:1px solid var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text2);cursor:pointer;opacity:0;pointer-events:none;transition:var(--tr);z-index:50}
.btt.show{opacity:1;pointer-events:all}
.btt:hover{color:#fff;border-color:var(--red)}

/* ========== AUDIENCE ========== */
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.audience-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:32px;transition:transform var(--tr),border-color var(--tr)}
.audience-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.1)}
.audience-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px;background:rgba(254,44,85,.08);color:var(--red)}
.audience-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.audience-card p{font-size:14px;color:var(--text2);line-height:1.7;margin-bottom:16px}
.audience-tag{display:inline-block;font-size:11px;color:var(--accent);background:rgba(37,244,238,.06);border:1px solid rgba(37,244,238,.12);padding:4px 12px;border-radius:100px;font-weight:500}

/* ========== REVEAL ========== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ========== RESPONSIVE ========== */
@media(max-width:900px){
  .nav-right{display:none}
  .nav-burger{display:flex}
  .mobile-menu{display:block}
  .compare-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr}
  .summary-cards{grid-template-columns:1fr 1fr}
  .stats-inner{flex-wrap:wrap}
  .stat{flex:1 1 40%;padding:12px}
  .stat-divider{display:none}
  .audience-grid{grid-template-columns:1fr 1fr}
  .pricing-grid-3{grid-template-columns:1fr}
  .pricing-grid-2{grid-template-columns:1fr}
  .pricing-card{padding:28px 24px 24px}
  .pricing-hot{margin-top:12px}
}
@media(max-width:600px){
  .hero-title{font-size:32px}
  .hero-tags{gap:6px}
  .hero-tag{padding:6px 12px;font-size:12px}
  .section{padding:64px 0}
  .services-grid{grid-template-columns:1fr}
  .process{flex-wrap:wrap;justify-content:center}
  .process-step{width:38%;flex:0 0 auto;margin-bottom:16px}
  .process-line{width:24%;height:2px;margin-top:28px;flex:0 0 auto}
  .process-line:nth-child(4){display:none}
  .process-line::after{right:0;top:-2px;bottom:auto;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:6px solid var(--border)}
  .summary-cards{grid-template-columns:1fr 1fr}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%;justify-content:center}
  .about-stats-box{grid-template-columns:1fr 1fr}
  .audience-grid{grid-template-columns:1fr}
  .price-current{font-size:40px}
  .price-symbol{font-size:20px}
  .pricing-card{padding:24px 20px 20px}
  .pricing-notes{align-items:flex-start;padding:0 8px}
}