/* ============================================
 * 观鼎山首页 · 小青龙引导系统 dragon.css
 * 板块：小青龙
 * 功能：双形态（苗条龙形/卡通人形）+ 幻化动画 + 传统礼仪
 * 入场：龙形→幻化→人形→拱手礼→自我介绍
 * 退场：作揖礼→人形→幻化→龙形→告别→驾云离去
 * ============================================ */

/* ---------- 小青龙插槽（注册登录与品牌LOGO之间） ---------- */
.gds-dragon-slot {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 90;
}

/* ---------- 小青龙容器 ---------- */
.gds-dragon-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: none;
}

.gds-dragon-container.active {
  display: block;
}

/* ---------- 天空之门（光效） ---------- */
.gds-dragon-gate {
  position: absolute;
  top: -60px;
  left: 30px;
  width: 160px;
  height: 100px;
  background: radial-gradient(ellipse at center,
    rgba(212, 168, 67, 0.5) 0%,
    rgba(212, 168, 67, 0.15) 40%,
    transparent 70%);
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

.gds-dragon-gate.active {
  opacity: 1;
  animation: gatePulse 2s ease-in-out infinite;
}

.gds-dragon-gate::before,
.gds-dragon-gate::after {
  content: '';
  position: absolute;
  top: -10px;
  width: 4px;
  height: 120px;
  background: linear-gradient(to bottom,
    rgba(212, 168, 67, 0.8),
    rgba(212, 168, 67, 0));
  border-radius: 2px;
  animation: gateBeam 2s ease-in-out infinite;
}

.gds-dragon-gate::before { left: 20px; }
.gds-dragon-gate::after  { right: 20px; }

@keyframes gatePulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes gateBeam {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ---------- 祥云座驾 ---------- */
.gds-dragon-cloud {
  position: absolute;
  width: 120px;
  height: 60px;
  pointer-events: none;
  top: -100px;
  left: 140px;
  transition: top 2s ease-out, left 2s ease-out;
}

.gds-dragon-cloud.entered {
  top: 5px;
  left: 140px;
}

.gds-dragon-cloud-shape {
  position: absolute;
  width: 100%;
  height: 100%;
}

.gds-dragon-cloud-shape::before,
.gds-dragon-cloud-shape::after {
  content: '';
  position: absolute;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 50%;
}

.gds-dragon-cloud-shape::before {
  width: 60px;
  height: 40px;
  top: 10px;
  left: 10px;
  filter: blur(2px);
}

.gds-dragon-cloud-shape::after {
  width: 80px;
  height: 35px;
  top: 20px;
  left: 25px;
  filter: blur(3px);
}

.gds-dragon-cloud.entered .gds-dragon-cloud-shape {
  animation: cloudFloat 3s ease-in-out infinite;
}

@keyframes cloudFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* 退场上升（天际渐隐） */
.gds-dragon-cloud.exiting {
  top: -300px !important;
  transition: top 2.5s ease-in, opacity 2s ease-in;
  opacity: 0;
}

/* ---------- 小青龙主体（双形态共用） ---------- */
.gds-dragon-body {
  position: absolute;
  width: 80px;
  height: 80px;
  top: -20px;
  left: 20px;
  pointer-events: auto;
  cursor: pointer;
  transition: transform 0.5s ease;
}

.gds-dragon-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* ---------- 双形态切换 ---------- */
.gds-dragon-form {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.gds-dragon-form--active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.gds-dragon-form--hidden {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
  position: absolute;
}

/* ---------- 幻化光华特效 ---------- */
.gds-transform-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  z-index: 10;
}

.gds-transform-glow.active {
  opacity: 1;
  animation: transformGlow 1.2s ease-out;
}

@keyframes transformGlow {
  0% {
    width: 10px;
    height: 10px;
    opacity: 0;
    box-shadow: 0 0 0 0 rgba(79, 195, 247, 0);
  }
  20% {
    width: 20px;
    height: 20px;
    opacity: 1;
    box-shadow: 0 0 30px 10px rgba(79, 195, 247, 0.6),
                0 0 60px 20px rgba(212, 168, 67, 0.3);
  }
  50% {
    width: 100px;
    height: 100px;
    opacity: 1;
    box-shadow: 0 0 50px 20px rgba(79, 195, 247, 0.8),
                0 0 100px 40px rgba(212, 168, 67, 0.5);
  }
  80% {
    width: 80px;
    height: 80px;
    opacity: 0.8;
    box-shadow: 0 0 30px 10px rgba(79, 195, 247, 0.4),
                0 0 60px 20px rgba(212, 168, 67, 0.2);
  }
  100% {
    width: 0;
    height: 0;
    opacity: 0;
    box-shadow: 0 0 0 0 rgba(79, 195, 247, 0);
  }
}

/* 幻化粒子 */
.gds-transform-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  pointer-events: none;
  animation: particleBurst 1.2s ease-out forwards;
}

@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx), var(--ty)) scale(0);
  }
}

/* ---------- 苗条龙形SVG ---------- */
.gds-dragon-form--dragon .gds-dragon-svg {
  /* 保持原有SVG样式 */
}

/* ---------- 卡通人形SVG ---------- */
.gds-dragon-form--human .gds-dragon-svg {
  /* 保持原有SVG样式 */
}

/* ---------- 人形空闲态浮动 ---------- */
.gds-dragon-body.idle .gds-dragon-form--human {
  animation: idleFloat 3s ease-in-out infinite;
}

@keyframes idleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ---------- 传统礼仪 · 拱手礼（人形） ---------- */
.gds-dragon-body.greeting .gds-dragon-form--human {
  animation: greetingBow 1.5s ease;
}

@keyframes greetingBow {
  0% { transform: translateY(0) rotate(0deg); }
  20% { transform: translateY(0) rotate(0deg); }
  40% { transform: translateY(4px) rotate(-5deg); }
  60% { transform: translateY(6px) rotate(-8deg); }
  80% { transform: translateY(4px) rotate(-5deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

/* 人形手臂拱手 */
.gds-form-arms {
  transform-origin: center 60%;
  transition: transform 0.3s ease;
}

.gds-dragon-body.greeting .gds-form-arms {
  animation: foldArms 1.5s ease;
}

@keyframes foldArms {
  0% { transform: rotate(0deg) scale(1); }
  30% { transform: rotate(-10deg) scale(1.1); }
  60% { transform: rotate(-15deg) scale(1.15); }
  85% { transform: rotate(-10deg) scale(1.1); }
  100% { transform: rotate(0deg) scale(1); }
}

/* ---------- 传统礼仪 · 躬身作揖礼（人形） ---------- */
.gds-dragon-body.bowing .gds-dragon-form--human {
  animation: bowDeep 1.5s ease-in;
}

@keyframes bowDeep {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  25% { transform: translateY(8px) rotate(-15deg); }
  50% { transform: translateY(16px) rotate(-30deg); }
  75% { transform: translateY(8px) rotate(-15deg); }
  100% { transform: translateY(0) rotate(0deg); opacity: 1; }
}

.gds-dragon-body.bowing .gds-form-arms {
  animation: bowArms 1.5s ease-in;
}

@keyframes bowArms {
  0% { transform: rotate(0deg) scale(1); }
  30% { transform: rotate(-20deg) scale(1.2); }
  60% { transform: rotate(-25deg) scale(1.25); }
  85% { transform: rotate(-20deg) scale(1.2); }
  100% { transform: rotate(0deg) scale(1); }
}

/* ---------- 人形挥手 ---------- */
.gds-dragon-body.wave .gds-dragon-form--human {
  animation: waveHand 2s ease-in-out;
}

@keyframes waveHand {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  50% { transform: rotate(5deg); }
  75% { transform: rotate(-10deg); }
}

/* ---------- 气泡提示 ---------- */
.gds-dragon-bubble {
  position: absolute;
  top: -50px;
  left: 60px;
  background: rgba(255, 255, 255, 0.95);
  color: #333;
  padding: 8px 14px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  max-width: 260px;
  white-space: normal;
  line-height: 1.4;
}

.gds-dragon-bubble::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid rgba(255, 255, 255, 0.95);
}

.gds-dragon-bubble.active {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 空闲态活动叠加层 ---------- */
.gds-dragon-activity {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.gds-dragon-activity.active {
  opacity: 1;
}

/* 数星宿 */
.gds-dragon-star {
  position: absolute;
  width: 6px;
  height: 6px;
  background: #FFD700;
  border-radius: 50%;
  animation: starTwinkle 1.5s ease-in-out infinite;
}

@keyframes starTwinkle {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

.gds-dragon-star-label {
  position: absolute;
  font-size: 9px;
  color: rgba(255, 215, 0, 0.9);
  text-shadow: 0 0 4px rgba(255, 215, 0, 0.5);
  white-space: nowrap;
  pointer-events: none;
  font-weight: 500;
}

/* 天球穹庐 */
.gds-dragon-celestial {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2px solid rgba(255, 215, 0, 0.3);
  background: rgba(0, 0, 0, 0.1);
  animation: celestialSpin 8s linear infinite;
}

@keyframes celestialSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.gds-dragon-term {
  position: absolute;
  font-size: 7px;
  color: rgba(255, 215, 0, 0.7);
  text-shadow: 0 0 3px rgba(255, 215, 0, 0.3);
  pointer-events: none;
}

/* ---------- 引导飞行 ---------- */
.gds-dragon-body.flying .gds-dragon-form--active {
  transition: top 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              left 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  animation: wingFlap 0.3s ease-in-out infinite;
}

@keyframes wingFlap {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.95) scaleX(1.05); }
}

/* ---------- 昼夜模式适配 ---------- */
[data-theme="dark"] .gds-dragon-cloud-shape::before,
[data-theme="dark"] .gds-dragon-cloud-shape::after {
  background: rgba(80, 100, 160, 0.5);
}

[data-theme="dark"] .gds-dragon-bubble {
  background: rgba(30, 35, 60, 0.95);
  color: #c8d0e0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .gds-dragon-bubble::after {
  border-top-color: rgba(30, 35, 60, 0.95);
}

[data-theme="dark"] .gds-dragon-gate {
  background: radial-gradient(ellipse at center,
    rgba(79, 195, 247, 0.5) 0%,
    rgba(79, 195, 247, 0.15) 40%,
    transparent 70%);
}

[data-theme="dark"] .gds-dragon-gate::before,
[data-theme="dark"] .gds-dragon-gate::after {
  background: linear-gradient(to bottom,
    rgba(79, 195, 247, 0.8),
    rgba(79, 195, 247, 0));
}

[data-theme="dark"] .gds-transform-glow.active {
  box-shadow: 0 0 40px 15px rgba(79, 195, 247, 0.5),
              0 0 80px 30px rgba(100, 150, 255, 0.3);
}

/* ---------- 移动端适配 ---------- */
@media (max-width: 768px) {
  .gds-dragon-cloud {
    width: 80px;
    height: 40px;
    left: 100px;
  }

  .gds-dragon-cloud.entered {
    top: 0;
    left: 100px;
  }

  .gds-dragon-body {
    width: 50px;
    height: 50px;
    top: -12px;
    left: 15px;
  }

  .gds-dragon-gate {
    width: 100px;
    height: 70px;
    left: 10px;
  }

  .gds-dragon-gate::before,
  .gds-dragon-gate::after {
    height: 80px;
  }

  .gds-dragon-bubble {
    font-size: 11px;
    padding: 6px 10px;
    top: -40px;
    left: 30px;
    max-width: 180px;
  }

  .gds-dragon-celestial {
    width: 60px;
    height: 60px;
  }

  .gds-dragon-term {
    font-size: 5px;
  }
}