:root{
  --accent:#e60023; /* high-conversion red */
  --accent-light:#ff3652;
  --bg:#0f1724;
  --card:#0b1320;
  --muted:#9aa4b2;
  --white:#ffffff;
  --radius:12px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans KR', 'Helvetica Neue', Arial;
}

/* 基础样式和动画 */
html,body{
  height:100%;

  margin:0;
  background:linear-gradient(180deg,#031026 0%, #071428 50%, #0a1a30 100%);
  background-attachment:fixed;
  color:var(--white);
  overflow-x:hidden;
}

.wrap{
  max-width:820px;
  margin:0 auto;
  padding:20px;
  box-sizing:border-box;
  animation:fadeInUp 0.8s ease-out;
}

/* 页面进入动画 */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

@keyframes fadeInLeft{
  from{opacity:0;transform:translateX(-30px)}
  to{opacity:1;transform:translateX(0)}
}

@keyframes fadeInRight{
  from{opacity:0;transform:translateX(30px)}
  to{opacity:1;transform:translateX(0)}
}

@keyframes scaleIn{
  from{opacity:0;transform:scale(0.9)}
  to{opacity:1;transform:scale(1)}
}

@keyframes glow{
  0%,100%{box-shadow:0 0 20px rgba(230,0,35,0.3)}
  50%{box-shadow:0 0 30px rgba(230,0,35,0.6), 0 0 40px rgba(230,0,35,0.2)}
}

@keyframes float{
  0%,100%{transform:translateY(0px)}
  50%{transform:translateY(-10px)}
}

/* 背景装饰 */
body::before{
  content:'';
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:radial-gradient(circle at 20% 80%, rgba(230,0,35,0.05) 0%, transparent 50%),
             radial-gradient(circle at 80% 20%, rgba(102,126,234,0.05) 0%, transparent 50%);
  pointer-events:none;
  z-index:-1;
}

/* FIRST FOLD */
.hero{
  background:linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 50%, transparent 100%);
  border-radius:20px;
  padding:24px;
  display:flex;
  gap:20px;
  align-items:center;
  position:relative;
  overflow:hidden;
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.06);
  box-shadow:0 8px 32px rgba(0,0,0,0.2);
  animation:scaleIn 0.6s ease-out 0.2s both;
}

.hero::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.left{
  flex:1;
  min-width:0;
  animation:fadeInLeft 0.8s ease-out 0.4s both;
}

.title{
  font-size:22px;
  line-height:1.2;
  margin:0 0 12px;
  font-weight:800;
  background:linear-gradient(135deg, var(--white) 0%, #e0e6ed 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.subtitle{
  font-size:14px;
  color:var(--muted);
  margin:0 0 16px;
  line-height:1.4;
}

.live-counter{
  font-weight:700;
  font-size:18px;
  color:var(--accent);
  margin-bottom:12px;
  animation:glow 2s ease-in-out infinite;
}

.badge{
  display:inline-block;
  background:linear-gradient(135deg, rgba(230,0,35,0.1), rgba(255,54,82,0.05));
  padding:8px 14px;
  border-radius:20px;
  font-size:13px;
  color:var(--accent-light);
  margin-bottom:16px;
  border:1px solid rgba(230,0,35,0.2);
  animation:fadeInUp 0.6s ease-out 0.6s both;
}

/* CTA */
.cta-wrap{
  display:flex;
  align-items:center;
  gap:16px;
  animation:fadeInUp 0.8s ease-out 0.8s both;
}

.cta{
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color:var(--white);
  border:none;
  padding:16px 24px;
  font-size:18px;
  font-weight:800;
  border-radius:14px;
  max-width:420px;
  cursor:pointer;
  box-shadow:0 12px 28px rgba(230,0,35,0.25), 0 0 0 1px rgba(255,255,255,0.1);
  transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position:relative;
  overflow:hidden;
}

.cta::before{
  content:'';
  position:absolute;
  top:0;
  left:-100%;
  width:100%;
  height:100%;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition:left 0.6s ease;
}

.cta:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 32px rgba(230,0,35,0.3), 0 0 0 1px rgba(255,255,255,0.15);
  background:linear-gradient(135deg, var(--accent-light) 0%, #ff4d6d 100%);
}

.cta:hover::before{
  left:100%;
}

.cta:active{
  transform:translateY(0px);
  transition:transform 0.1s ease;
}

.cta:focus{
  outline:none;
  box-shadow:0 12px 28px rgba(230,0,35,0.25), 0 0 0 3px rgba(230,0,35,0.3);
}

.cta-help{
  font-size:13px;
  color:var(--muted);
  line-height:1.3;
}

/* video column */
.right{
  width:220px;
  flex-shrink:0;
  animation:fadeInRight 0.8s ease-out 0.6s both;
}

.video-card{
  width:100%;
  height:400px;
  border-radius:18px;
  overflow:hidden;
  background:linear-gradient(135deg, #000 0%, #1a1a1a 100%);
  position:relative;
  border:2px solid rgba(255,255,255,0.1);
  box-shadow:0 16px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(230,0,35,0.1);
  transition:all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:hover{
  transform:translateY(-6px) scale(1.02);
  box-shadow:0 24px 48px rgba(0,0,0,0.6), 0 0 0 2px rgba(230,0,35,0.3);
  border-color:rgba(230,0,35,0.2);
}

.video-card video{
  width:100%;
  height:100%;
  object-fit:cover;
}

.arrow{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:24px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  animation:float 2.5s ease-in-out infinite;
  background:rgba(0,0,0,0.7);
  backdrop-filter:blur(10px);
  padding:12px 16px;
  border-radius:20px;
  border:1px solid rgba(255,255,255,0.1);
}

.arrow svg{
  width:48px;
  height:48px;
  filter:drop-shadow(0 4px 12px rgba(230,0,35,0.4));
  stroke:var(--accent);
  animation:bounce 1.5s ease-in-out infinite;
}

.arrow .text{
  font-size:11px;
  color:var(--white);
  opacity:0.9;
  font-weight:600;
  text-shadow:0 1px 3px rgba(0,0,0,0.8);
}

@keyframes bounce{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
}

/* trust & small print */
.trust{
  display:flex;
  gap:16px;
  align-items:center;
  margin-top:20px;
  animation:fadeInUp 1s ease-out 1s both;
}

.logos img{
  height:26px;
  opacity:0.8;
  transition:opacity 0.3s ease;
  filter:grayscale(1);
}

.logos img:hover{
  opacity:1;
}

.price{
  margin-left:auto;
  text-align:right;
}

.price .from{
  font-size:13px;
  color:var(--muted);
  text-decoration:line-through;
  opacity:0.7;
}

.price .now{
  font-size:22px;
  font-weight:800;
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.privacy{
  font-size:12px;
  color:var(--muted);
  margin-top:16px;
  opacity:0.8;
  line-height:1.4;
}

/* floating chat */
.chat-widget{
  position:fixed;
  right:20px;
  bottom:20px;
  background:linear-gradient(135deg,#05122a,#062031);
  padding:14px 16px;
  border-radius:16px;
  box-shadow:0 12px 32px rgba(2,6,23,0.8), 0 0 0 1px rgba(255,255,255,0.06);
  display:flex;
  align-items:center;
  gap:12px;
  backdrop-filter:blur(10px);
  transition:all 0.3s ease;
  animation:slideInUp 0.6s ease-out 1.2s both;
  cursor:pointer;
}

.chat-widget:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 40px rgba(2,6,23,0.9), 0 0 0 1px rgba(255,255,255,0.1);
}

.chat-widget .dot{
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 12px rgba(230,0,35,0.8);
  animation:pulse 2s ease-in-out infinite;
}

.chat-widget .text{
  font-size:13px;
  color:var(--white);
}

@keyframes slideInUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

@keyframes pulse{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.2);opacity:0.8}
}

/* modal */
.modal{
  position:fixed;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(2,6,23,0.8);
  backdrop-filter:blur(8px);
  visibility:hidden;
  opacity:0;
  transition:all 0.3s ease;
  z-index:1000;
}

.modal.show{
  visibility:visible;
  opacity:1;
}

.modal .card{
  background:linear-gradient(135deg, var(--card) 0%, #0e1826 100%);
  padding:24px;
  border-radius:16px;
  max-width:380px;
  width:90%;
  text-align:center;
  border:1px solid rgba(255,255,255,0.08);
  box-shadow:0 20px 40px rgba(0,0,0,0.6);
  transform:scale(0.9);
  transition:transform 0.3s ease;
}

.modal.show .card{
  transform:scale(1);
}

.modal .card h3{
  margin:0 0 12px;
  color:var(--white);
  font-size:18px;
}

.modal .card p{
  margin:8px 0 20px;
  color:var(--muted);
  line-height:1.5;
}

.modal .card button{
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  border:none;
  padding:12px 20px;
  border-radius:10px;
  color:var(--white);
  font-weight:600;
  cursor:pointer;
  transition:all 0.3s ease;
}

.modal .card button:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(230,0,35,0.3);
}

/* 装饰元素 */
.floating-particles{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  pointer-events:none;
  z-index:-1;
}

.particle{
  position:absolute;
  width:2px;
  height:2px;
  background:rgba(230,0,35,0.3);
  border-radius:50%;
  animation:floatParticle 8s linear infinite;
}

.particle:nth-child(2){
  background:rgba(102,126,234,0.3);
  animation-delay:-2s;
  animation-duration:10s;
}

.particle:nth-child(3){
  background:rgba(255,255,255,0.1);
  animation-delay:-4s;
  animation-duration:12s;
}

@keyframes floatParticle{
  0%{transform:translateY(100vh) translateX(0px) rotate(0deg);opacity:0}
  10%{opacity:1}
  90%{opacity:1}
  100%{transform:translateY(-100px) translateX(100px) rotate(360deg);opacity:0}
}

/* 确保桌面端样式 */
@media (min-width:521px){
  .hero{
    flex-direction:row;
    align-items:center;
  }
  .left{
    flex:1;
    min-width:0;
  }
  .right{
    width:220px;
    flex-shrink:0;
  }
  .video-card{
    width:100%;
    height:400px;
  }
  .title{
    text-align:left;
  }
  .subtitle{
    text-align:left;
  }
  .live-counter{
    text-align:left;
  }
  .cta-wrap{
    flex-direction:row;
    align-items:center;
  }
  .trust{
    flex-direction:row;
    align-items:center;
  }
}

/* small screens */
@media (max-width:520px){
  .wrap{padding:16px}
  .hero{
    flex-direction:column;
    padding:20px;
    gap:20px;
  }
  .right{
    width:100%;
    display:flex;
    justify-content:center;
  }
  .video-card{
    width:100%;
    height:320px;
  }
  .title{
    font-size:20px;
    text-align:center;
  }
  .subtitle{
    text-align:center;
  }
  .live-counter{
    text-align:center;
  }
  .cta-wrap{
    flex-direction:column;
    align-items:center;
    gap:12px;
  }
  .cta{
    min-width:80vw;
    max-width:none;
  }
  .trust{
    flex-direction:column;
    text-align:center;
    gap:12px;
  }
  .chat-widget{
    right:16px;
    bottom:16px;
    padding:12px 14px;
  }
  .chat-widget .text{
    font-size:12px;
  }
}