:root {
  --bg: #05060A;
  --yellow: #FFD84D;
  --orange: #FFA51F;
  --cyan: #00F0C8;
  --purple: #8A6CFF;
  --text-main: #FFFFFF;
  --text-sub: #A7ACBB;
  --container-bg: rgba(255, 255, 255, 0.03);
  --container-border: rgba(255, 255, 255, 0.08);
  --radius-lg: 32px;
  --radius-md: 24px;
  --radius-sm: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", STHeiti, "Microsoft YaHei", sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 240, 200, 0.05), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(255, 216, 77, 0.05), transparent 25%);
  background-attachment: fixed;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 100;
  transition: all 0.3s ease;
  padding: 20px 0;
}
.header.scrolled {
  padding: 10px 0;
  background: rgba(5, 6, 10, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--container-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-area img { height: 36px; border-radius: 8px; }
.logo-text {
  font-size: 20px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  -webkit-background-clip: text;
  color: transparent;
}
.nav-links {
  display: flex;
  gap: 32px;
  font-size: 15px;
  color: var(--text-sub);
}
.nav-links a:hover { color: var(--cyan); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.search-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--container-border);
  border-radius: 20px;
  padding: 8px 16px;
  color: var(--text-sub);
  font-size: 14px;
  display: none;
}
.btn-download-nav {
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  color: var(--bg);
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 24px;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dropdown-menu {
  position: absolute;
  top: 120%; right: 0;
  background: rgba(15, 18, 28, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 240, 200, 0.3);
  border-radius: 16px;
  padding: 20px;
  width: 300px;
  opacity: 0;
  transform: scale(0.95) translateY(-10px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.btn-download-nav:hover .dropdown-menu {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}
.dd-item { margin-bottom: 16px; }
.dd-item:last-child { margin-bottom: 0; }
.dd-title { font-weight: bold; color: var(--yellow); margin-bottom: 4px; font-size: 15px; }
.dd-desc { font-size: 13px; color: var(--text-sub); }
.dd-bonus {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--container-border);
  color: var(--cyan);
  font-size: 13px;
  text-align: center;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  background: rgba(0, 240, 200, 0.1);
  color: var(--cyan);
  font-size: 14px;
  border: 1px solid rgba(0, 240, 200, 0.3);
  margin-bottom: 24px;
}
h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
}
.brand-highlight {
  background: linear-gradient(90deg, var(--yellow), var(--orange), var(--yellow));
  background-size: 200% auto;
  -webkit-background-clip: text;
  color: transparent;
  animation: shine 3s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }
.hero-sub {
  font-size: 18px;
  color: var(--text-sub);
  margin-bottom: 40px;
  max-width: 500px;
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 48px; }
.btn-main {
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  color: var(--bg);
  font-weight: 700;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 30px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 165, 31, 0.3);
  transition: transform 0.2s;
}
.btn-main:hover { transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  font-weight: 700;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 30px;
  border: 1px solid var(--container-border);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }
.hero-stats { display: flex; gap: 32px; }
.stat-item .num { font-size: 28px; font-weight: 900; color: var(--yellow); }
.stat-item .label { font-size: 14px; color: var(--text-sub); }

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.phone-mockup {
  width: 280px;
  height: 580px;
  background: linear-gradient(180deg, #1A1D27, #05060A);
  border-radius: 40px;
  border: 8px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 40px rgba(0, 240, 200, 0.2), inset 0 0 20px rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
  transform: rotate(-5deg);
  transition: transform 0.5s ease;
}
.phone-mockup:hover { transform: rotate(0deg) translateY(-10px); }
.phone-mockup img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }
.float-card {
  position: absolute;
  background: rgba(15, 18, 28, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 240, 200, 0.3);
  border-radius: 16px;
  padding: 12px 20px;
  font-size: 14px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  animation: float 4s ease-in-out infinite alternate;
}
@keyframes float { from { transform: translateY(0); } to { transform: translateY(-15px); } }
.fc-1 { top: 10%; left: -10%; animation-delay: 0s; }
.fc-2 { bottom: 20%; right: -10%; animation-delay: 2s; }

/* Sections */
section { padding: 80px 0; position: relative; }
.section-title {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 40px;
  text-align: center;
}
.section-title span { color: var(--cyan); }

/* Energy Marquee */
.marquee {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--container-border);
  border-bottom: 1px solid var(--container-border);
  padding: 20px 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-content {
  display: inline-block;
  animation: scroll 20s linear infinite;
}
.marquee-item {
  display: inline-block;
  margin: 0 40px;
  font-size: 16px;
  color: var(--text-sub);
}
.marquee-item strong { color: var(--yellow); }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* Mood Channels */
.mood-tags { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-bottom: 40px; }
.mood-tag {
  padding: 10px 24px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--container-border);
  color: var(--text-main);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s;
}
.mood-tag:hover, .mood-tag.active {
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  color: var(--bg);
  border-color: transparent;
}

/* Grid Cards */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  background: var(--container-bg);
  border: 1px solid var(--container-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s;
  position: relative;
}
.card:hover { transform: translateY(-8px); border-color: rgba(0, 240, 200, 0.4); box-shadow: 0 10px 30px rgba(0, 240, 200, 0.1); }
.card-img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.card-info { padding: 16px; }
.card-title { font-size: 18px; font-weight: bold; margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-meta { font-size: 13px; color: var(--text-sub); display: flex; justify-content: space-between; }
.card-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--orange); color: var(--bg);
  font-size: 12px; font-weight: bold; padding: 4px 8px; border-radius: 4px;
}

/* Top Charts */
.chart-list { display: flex; flex-direction: column; gap: 16px; }
.chart-item {
  display: flex; align-items: center; gap: 24px;
  background: var(--container-bg); border: 1px solid var(--container-border);
  padding: 16px 24px; border-radius: var(--radius-sm);
  transition: all 0.3s; position: relative;
}
.chart-item:hover { transform: translateX(10px); border-color: var(--yellow); }
.chart-item:hover::before { content: ''; position: absolute; left: 0; top: 10%; height: 80%; width: 4px; background: var(--yellow); border-radius: 0 4px 4px 0; }
.chart-num { font-size: 32px; font-weight: 900; font-style: italic; width: 40px; }
.chart-num.gold { color: var(--yellow); text-shadow: 0 0 10px rgba(255, 216, 77, 0.5); }
.chart-num.silver { color: #E0E0E0; }
.chart-num.bronze { color: #FFA51F; }
.chart-item img { width: 60px; height: 80px; object-fit: cover; border-radius: 8px; }
.chart-info { flex: 1; }
.chart-name { font-size: 18px; font-weight: bold; margin-bottom: 4px; }
.chart-type { font-size: 14px; color: var(--text-sub); }
.chart-hot { width: 200px; }
.progress-bar { height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; overflow: hidden; margin-top: 8px; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--orange), var(--yellow)); border-radius: 3px; }

/* Tech Features */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feature-card {
  background: var(--container-bg); border: 1px solid var(--container-border);
  border-radius: var(--radius-md); padding: 32px;
  transition: all 0.3s;
}
.feature-card:hover { border-color: var(--cyan); box-shadow: 0 0 20px rgba(0, 240, 200, 0.1); }
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-title { font-size: 20px; font-weight: bold; margin-bottom: 12px; color: var(--cyan); }
.feature-desc { font-size: 15px; color: var(--text-sub); }

/* VIP Section */
.vip-section {
  background: linear-gradient(135deg, rgba(255, 216, 77, 0.1), rgba(255, 165, 31, 0.1));
  border: 1px solid rgba(255, 216, 77, 0.3);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.vip-content h2 { font-size: 36px; font-weight: 900; color: var(--yellow); margin-bottom: 16px; }
.vip-content p { font-size: 16px; color: var(--text-sub); margin-bottom: 24px; max-width: 500px; }

/* Download Block */
.download-block {
  text-align: center;
  background: radial-gradient(circle at center, rgba(0, 240, 200, 0.1), transparent 60%);
  border-radius: 50%; padding: 80px 20px;
}
.download-block h2 { font-size: 40px; font-weight: 900; margin-bottom: 20px; }
.download-block p { font-size: 18px; color: var(--text-sub); margin-bottom: 40px; }
.dl-buttons { display: flex; justify-content: center; gap: 20px; }

/* Footer */
footer {
  border-top: 1px solid var(--container-border);
  padding: 60px 0 30px;
  background: #030408;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-sub); font-size: 14px; margin-top: 16px; }
.footer-col h4 { font-size: 16px; margin-bottom: 20px; color: var(--text-main); }
.footer-col a { display: block; color: var(--text-sub); font-size: 14px; margin-bottom: 12px; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  text-align: center; color: #666; font-size: 13px;
  padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.time-tag { display: block; margin-top: 8px; color: #555; }

@media (min-width: 768px) {
  h1 { font-size: 64px; }
  .hero-inner { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: repeat(4, 1fr); }
  .search-box { display: block; }
}

@media (min-width: 1024px) {
  h1 { font-size: 76px; }
  .nav-links { display: flex; }
}

@media (max-width: 767px) {
  .nav-links { display: none; }
  .hero-stats { flex-wrap: wrap; }
  .vip-section { flex-direction: column; text-align: center; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dl-buttons { flex-direction: column; }
}