@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;400;600&display=swap');

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

:root {
  --bg: #050510;
  --cyan: #00f5ff;
  --purple: #bf00ff;
  --pink: #ff006e;
  --card-bg: rgba(255,255,255,0.05);
  --card-border: rgba(0,245,255,0.2);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: #e0e0ff;
  font-family: 'Rajdhani', sans-serif;
  font-size: 16px;
  overflow-x: hidden;
}

/* ── HERO ── */
#hero {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 1;
}

#vanta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid var(--cyan);
  box-shadow: 0 0 20px var(--cyan), 0 0 40px rgba(0,245,255,0.3);
  object-fit: cover;
  background: rgba(0,245,255,0.1);
}

/* Glitch title */
.glitch {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  position: relative;
  letter-spacing: 2px;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  overflow: hidden;
}

.glitch::before {
  color: var(--cyan);
  animation: glitch-top 3s infinite linear;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
  transform: translateX(-3px);
}

.glitch::after {
  color: var(--pink);
  animation: glitch-bot 3s infinite linear;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
  transform: translateX(3px);
}

@keyframes glitch-top {
  0%,90%,100% { transform: translateX(-3px); opacity: 1; }
  92% { transform: translateX(4px) skewX(5deg); opacity: 0.8; }
  94% { transform: translateX(-2px); opacity: 1; }
  96% { transform: translateX(6px); opacity: 0.6; }
  98% { transform: translateX(-3px); opacity: 1; }
}

@keyframes glitch-bot {
  0%,90%,100% { transform: translateX(3px); opacity: 1; }
  92% { transform: translateX(-4px) skewX(-5deg); opacity: 0.8; }
  94% { transform: translateX(2px); opacity: 1; }
  96% { transform: translateX(-6px); opacity: 0.6; }
  98% { transform: translateX(3px); opacity: 1; }
}

.subtitle {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: rgba(224,224,255,0.75);
  letter-spacing: 1px;
}

/* ── 联系方式 ── */
.contact-links {
  display: flex;
  gap: 20px;
  margin-top: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
  text-decoration: none;
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 1px;
  transition: color 0.2s, text-shadow 0.2s;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.contact-btn:hover {
  color: #fff;
  text-shadow: 0 0 10px var(--cyan);
}

.contact-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
}

/* 复制提示 */
.copy-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(0,245,255,0.15);
  border: 1px solid rgba(0,245,255,0.4);
  color: var(--cyan);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.9rem;
  letter-spacing: 1px;
  padding: 8px 20px;
  border-radius: 20px;
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 999;
}

.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── SECTIONS ── */
section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
  position: relative;
  color: #fff;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  margin: 10px auto 0;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  box-shadow: 0 0 8px var(--cyan);
}

.section-title.purple::after {
  background: linear-gradient(90deg, var(--purple), var(--pink));
  box-shadow: 0 0 8px var(--purple);
}

/* ── CARDS ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,245,255,0.25), 0 8px 32px rgba(0,0,0,0.4);
}

.card.purple-accent:hover {
  border-color: var(--purple);
  box-shadow: 0 0 20px rgba(191,0,255,0.25), 0 8px 32px rgba(0,0,0,0.4);
}

.card-icon { font-size: 2rem; }

.card-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
}

.card-desc {
  font-size: 0.9rem;
  color: rgba(224,224,255,0.6);
  line-height: 1.5;
}

.card-tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(0,245,255,0.1);
  border: 1px solid rgba(0,245,255,0.3);
  color: var(--cyan);
  letter-spacing: 1px;
  align-self: flex-start;
  margin-top: auto;
}

.card.purple-accent .card-tag {
  background: rgba(191,0,255,0.1);
  border-color: rgba(191,0,255,0.3);
  color: var(--purple);
}

/* ── VIDEOS ── */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.video-wrap {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(191,0,255,0.2);
  background: #0a0a1a;
  transition: box-shadow 0.25s;
}

.video-wrap:hover {
  box-shadow: 0 0 20px rgba(191,0,255,0.3);
}

.video-ratio {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
}

.video-ratio iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Shorts 竖版 9:16 */
.shorts-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.shorts-wrap {
  width: 260px;
  flex-shrink: 0;
}

.shorts-ratio {
  position: relative;
  padding-bottom: 177.78%; /* 9:16 */
  height: 0;
}

.shorts-ratio iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 40px 24px;
  color: rgba(224,224,255,0.3);
  font-size: 0.85rem;
  letter-spacing: 1px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .videos-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .contact-links { flex-direction: column; gap: 12px; align-items: center; }
  .shorts-wrap { width: 100%; max-width: 320px; }
}