/* ========================================
   今日你的牛 — 设计系统
   温暖、有仪式感、轻娱乐、适合截图分享
   ======================================== */

:root {
  /* 色彩令牌 */
  --color-bg: #FBF7F0;
  --color-bg-deep: #F5EFE3;
  --color-surface: #FFFFFF;
  --color-ink: #2B2420;
  --color-ink-soft: #6B5D52;
  --color-ink-faint: #A89B8E;
  --color-line: #E8E0D5;

  --color-primary: #D9482E;
  --color-primary-deep: #B83A22;
  --color-primary-soft: #FDEAE4;
  --color-gold: #E8A02C;
  --color-gold-soft: #FEF3D7;

  /* 稀有度色阶 */
  --rarity-N: #9CA3AF;
  --rarity-R: #3B82F6;
  --rarity-SR: #8B5CF6;
  --rarity-SSR: #F59E0B;
  --rarity-UR-1: #F59E0B;
  --rarity-UR-2: #EC4899;
  --rarity-UR-3: #8B5CF6;

  /* 字体 */
  --font-display: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', monospace;

  /* 字号 */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 1.75rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;
  --fs-5xl: 4rem;

  /* 间距 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(43, 36, 32, 0.06), 0 1px 2px rgba(43, 36, 32, 0.04);
  --shadow-md: 0 4px 12px rgba(43, 36, 32, 0.08), 0 2px 4px rgba(43, 36, 32, 0.04);
  --shadow-lg: 0 12px 32px rgba(43, 36, 32, 0.12), 0 4px 8px rgba(43, 36, 32, 0.06);
  --shadow-xl: 0 24px 64px rgba(43, 36, 32, 0.16), 0 8px 16px rgba(43, 36, 32, 0.08);
  --shadow-glow: 0 0 40px rgba(217, 72, 46, 0.3);

  /* 动效 */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-snap: cubic-bezier(0.7, 0, 0.84, 0);
  --dur-fast: 150ms;
  --dur-normal: 300ms;
  --dur-slow: 600ms;

  /* 布局 */
  --maxw: 480px;
}

/* ========================================
   基础重置
   ======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.modal-open { overflow: hidden; }

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

/* 3 × 3 透明九宫格的通用切片视窗 */
.bull-art {
  position: relative;
  display: block;
  width: min(100%, var(--bull-art-size, 100%));
  height: min(100%, var(--bull-art-size, 100%));
  overflow: hidden;
  user-select: none;
}

.bull-art > img {
  position: absolute;
  width: 300%;
  height: 300%;
  max-width: none;
  pointer-events: none;
}

::selection { background: var(--color-primary-soft); color: var(--color-primary-deep); }

/* ========================================
   应用容器 — 手机优先居中布局
   ======================================== */
.app {
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 100dvh;
  position: relative;
  background: var(--color-bg);
  overflow: hidden;
}

/* 背景纹理 — 微妙的纸质质感 */
.app::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 10%, rgba(232, 160, 44, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(217, 72, 46, 0.03) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

/* ========================================
   页面切换系统
   ======================================== */
.screen {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: none;
  flex-direction: column;
  padding: var(--sp-8) var(--sp-6);
}

.screen.active {
  display: flex;
  animation: screen-in 500ms var(--ease-smooth) both;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   首页
   ======================================== */
.home {
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--sp-6);
}

.home__bull {
  width: 120px;
  height: 120px;
  margin-bottom: var(--sp-2);
  animation: bull-float 4s ease-in-out infinite;
  filter: drop-shadow(0 8px 20px rgba(217, 72, 46, 0.2));
}

@keyframes bull-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
}

.home__title {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  line-height: 1.2;
}

.home__slogan {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-ink-soft);
  font-weight: 400;
  letter-spacing: 0.05em;
  max-width: 280px;
}

.home__summon {
  margin-top: var(--sp-8);
  position: relative;
}

.home__summon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-12);
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg), 0 0 0 0 rgba(217, 72, 46, 0.4);
  transition: transform var(--dur-fast) var(--ease-smooth), box-shadow var(--dur-normal) var(--ease-smooth);
  animation: summon-pulse 2.5s ease-in-out infinite;
  letter-spacing: 0.08em;
}

.home__summon-btn:hover { transform: translateY(-2px) scale(1.03); box-shadow: var(--shadow-xl); }
.home__summon-btn:active { transform: translateY(0) scale(0.98); }

@keyframes summon-pulse {
  0%, 100% { box-shadow: var(--shadow-lg), 0 0 0 0 rgba(217, 72, 46, 0.3); }
  50% { box-shadow: var(--shadow-lg), 0 0 0 16px rgba(217, 72, 46, 0); }
}

.home__proof {
  margin-top: var(--sp-12);
  font-size: var(--fs-sm);
  color: var(--color-ink-faint);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.home__proof-num {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-ink-soft);
}

.home__proof-dot {
  width: 6px; height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: dot-blink 1.5s ease-in-out infinite;
}

@keyframes dot-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* 首页入场逐项动画 */
.home > * { opacity: 0; animation: home-item-in 600ms var(--ease-smooth) forwards; }
.home > *:nth-child(1) { animation-delay: 100ms; }
.home > *:nth-child(2) { animation-delay: 250ms; }
.home > *:nth-child(3) { animation-delay: 400ms; }
.home > *:nth-child(4) { animation-delay: 600ms; }
.home > *:nth-child(5) { animation-delay: 800ms; }

@keyframes home-item-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   抽取动画页
   ======================================== */
.draw {
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--sp-8);
}

.draw__hint {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-ink-soft);
  letter-spacing: 0.1em;
  animation: hint-pulse 1.5s ease-in-out infinite;
}

@keyframes hint-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.draw__reel {
  width: 100%;
  height: 200px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-md), inset 0 0 0 1px var(--color-line);
}

/* 滚动窗口的上下渐隐遮罩 */
.draw__reel::before,
.draw__reel::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 60px;
  z-index: 2;
  pointer-events: none;
}
.draw__reel::before { top: 0; background: linear-gradient(to bottom, var(--color-surface), transparent); }
.draw__reel::after { bottom: 0; background: linear-gradient(to top, var(--color-surface), transparent); }

/* 中央指示线 */
.draw__indicator {
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  height: 2px;
  background: var(--color-primary);
  z-index: 3;
  transform: translateY(-1px);
  opacity: 0.4;
}
.draw__indicator::before,
.draw__indicator::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 0; height: 0;
  transform: translateY(-50%);
}
.draw__indicator::before {
  left: 0;
  border: 6px solid transparent;
  border-left-color: var(--color-primary);
}
.draw__indicator::after {
  right: 0;
  border: 6px solid transparent;
  border-right-color: var(--color-primary);
}

.draw__list {
  position: absolute;
  left: 0; right: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  will-change: transform;
}

.draw__item {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.1em;
}

.draw__bull-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--sp-2);
}

/* ========================================
   结果页
   ======================================== */
.result {
  justify-content: flex-start;
  align-items: center;
  text-align: center;
  gap: var(--sp-6);
  padding-top: var(--sp-12);
}

.result__rare-banner {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: linear-gradient(135deg, var(--color-gold), #FBBF24);
  color: #fff;
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: var(--radius-md);
  animation: rare-shine 1s var(--ease-elastic) both, rare-glow 2s ease-in-out infinite 1s;
  box-shadow: 0 4px 16px rgba(232, 160, 44, 0.4);
}

@keyframes rare-shine {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes rare-glow {
  0%, 100% { box-shadow: 0 4px 16px rgba(232, 160, 44, 0.4); }
  50% { box-shadow: 0 4px 24px rgba(232, 160, 44, 0.6); }
}

.result__label {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  color: var(--color-ink-soft);
  letter-spacing: 0.15em;
}

.result__bull-visual {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: result-pop 600ms var(--ease-elastic) both 200ms;
}

@keyframes result-pop {
  from { opacity: 0; transform: scale(0.5) rotate(-10deg); }
  to { opacity: 1; transform: scale(1) rotate(0); }
}

.result__bull-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  opacity: 0.3;
  filter: blur(20px);
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.1); }
}

.result__bull-icon {
  width: 140px;
  height: 140px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.15));
}

.result__name {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: 900;
  color: var(--color-ink);
  letter-spacing: 0.15em;
  animation: result-pop 600ms var(--ease-elastic) both 300ms;
}

.result__rarity {
  position: absolute;
  top: -10px;
  right: -16px;
  padding: 5px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--fs-base);
  font-weight: 800;
  letter-spacing: 0.05em;
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15), 0 4px 14px rgba(0,0,0,0.12);
  z-index: 3;
  white-space: nowrap;
  transform: rotate(-12deg);
  animation: rarity-badge-in 600ms var(--ease-elastic) both 400ms;
}

.result__rarity[data-rarity="N"] { background: #F3F4F6; color: var(--rarity-N); }
.result__rarity[data-rarity="R"] { background: #DBEAFE; color: var(--rarity-R); }
.result__rarity[data-rarity="SR"] { background: #EDE9FE; color: var(--rarity-SR); }
.result__rarity[data-rarity="SSR"] { background: #FEF3C7; color: #B45309; }
.result__rarity[data-rarity="UR"] {
  background: linear-gradient(135deg, var(--rarity-UR-1), var(--rarity-UR-2), var(--rarity-UR-3));
  background-size: 200% 200%;
  color: #fff;
  animation: rarity-badge-in 600ms var(--ease-elastic) both 400ms, rarity-ur-shimmer 2s linear infinite 600ms;
}

@keyframes rarity-badge-in {
  from { opacity: 0; transform: scale(0.3) rotate(-35deg); }
  to { opacity: 1; transform: scale(1) rotate(-12deg); }
}

@keyframes rarity-ur-shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* 牛气值条 */
.result__fortune {
  width: 100%;
  max-width: 280px;
  animation: result-pop 600ms var(--ease-elastic) both 500ms;
}

.result__fortune-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--sp-2);
}

.result__fortune-name {
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
  letter-spacing: 0.1em;
}

.result__fortune-value {
  font-family: var(--font-mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.result__fortune-bar {
  height: 10px;
  background: var(--color-bg-deep);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.result__fortune-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-primary));
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1.2s var(--ease-smooth) 600ms;
  position: relative;
}

.result__fortune-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: fortune-shine 2s ease-in-out infinite;
}

@keyframes fortune-shine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* 标签 */
.result__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  justify-content: center;
  animation: result-pop 600ms var(--ease-elastic) both 600ms;
}

.result__tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px 4px 8px;
  background: var(--tag-bg, var(--color-primary-soft));
  color: var(--tag-color, var(--color-primary-deep));
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
}

.result__tag::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--tag-color, var(--color-primary));
  margin-right: 6px;
  flex-shrink: 0;
}

/* 文案 */
.result__copy {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-ink);
  line-height: 1.8;
  max-width: 320px;
  animation: result-pop 600ms var(--ease-elastic) both 700ms;
}

.result__copy p { margin: 0; }
.result__copy p + p { margin-top: var(--sp-1); }

/* 操作按钮 */
.result__actions {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
  animation: result-pop 600ms var(--ease-elastic) both 800ms;
}

.result__actions .btn--primary { width: 100%; }

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: transform var(--dur-fast) var(--ease-smooth), background var(--dur-fast);
  letter-spacing: 0.05em;
}

.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn--primary:hover { background: var(--color-primary-deep); }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--color-line);
}
.btn--secondary:hover { background: var(--color-bg-deep); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink-soft);
  font-size: var(--fs-sm);
}
.btn--ghost:hover { color: var(--color-primary); }

.btn--swap {
  width: auto;
  min-height: 36px;
  padding: 7px 15px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.45);
  font-size: var(--fs-xs);
  color: var(--color-ink-soft);
  box-shadow: var(--shadow-sm);
}

.btn--swap:hover {
  background: var(--color-surface);
  border-color: rgba(217, 72, 46, 0.25);
}

.btn--swap.is-limit-reached,
.btn--swap.is-limit-reached:hover {
  opacity: 0.52;
  cursor: not-allowed;
  color: var(--color-ink-faint);
  background: rgba(255, 255, 255, 0.25);
  border-color: var(--color-line);
  box-shadow: none;
}

/* ========================================
   牛卡（分享卡）
   ======================================== */
.card-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  background: rgba(43, 36, 32, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--sp-4);
  padding:
    max(var(--sp-4), env(safe-area-inset-top))
    max(var(--sp-4), env(safe-area-inset-right))
    max(var(--sp-4), env(safe-area-inset-bottom))
    max(var(--sp-4), env(safe-area-inset-left));
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.card-modal.active {
  display: flex;
  animation: modal-in 300ms var(--ease-smooth);
}

@keyframes modal-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.card-modal__inner {
  position: relative;
  max-width: 360px;
  width: 100%;
  margin: auto 0;
  animation: card-pop 500ms var(--ease-elastic);
}

@keyframes card-pop {
  from { opacity: 0; transform: scale(0.8) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* 牛卡本体 — 3:4 比例 */
.bull-card {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
}

/* 顶部主题色带 */
.bull-card__topband {
  height: 6px;
  width: 100%;
  background: linear-gradient(90deg, var(--card-color, var(--color-primary)), var(--card-glow, var(--color-gold)));
  flex-shrink: 0;
}

.bull-card__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.1;
  pointer-events: none;
}

.bull-card__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  align-items: center;
  padding: var(--sp-6) var(--sp-6) var(--sp-4);
}

.bull-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: var(--sp-4);
}

.bull-card__brand {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-ink-soft);
  letter-spacing: 0.1em;
}

.bull-card__date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-ink-faint);
}

.bull-card__visual {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  width: 100%;
}

.bull-card__icon-wrap {
  position: relative;
  display: inline-block;
}

.bull-card__icon {
  width: 100px;
  height: 100px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.12));
}

.bull-card__name {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--color-ink);
}

.bull-card__rarity {
  position: absolute;
  top: -8px;
  right: -12px;
  padding: 3px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  border: 2.5px solid #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.12), 0 3px 10px rgba(0,0,0,0.1);
  white-space: nowrap;
  z-index: 2;
  transform: rotate(-12deg);
}

.bull-card__fortune {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  margin-top: var(--sp-1);
}

.bull-card__fortune-label {
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
}

.bull-card__fortune-value {
  font-family: var(--font-mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--card-color, var(--color-primary));
}

.bull-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
  justify-content: center;
}

.bull-card__tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px 3px 7px;
  background: var(--tag-bg, var(--color-primary-soft));
  color: var(--tag-color, var(--color-primary-deep));
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  white-space: nowrap;
}

.bull-card__tag::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--tag-color, var(--color-primary));
  margin-right: 5px;
  flex-shrink: 0;
}

.bull-card__copy {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
  text-align: center;
  line-height: 1.7;
  margin-top: var(--sp-4);
  max-width: 240px;
}

/* 底部分割线 */
.bull-card__divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-line) 20%, var(--color-line) 80%, transparent);
  margin: var(--sp-4) 0 var(--sp-3);
  flex-shrink: 0;
}

.bull-card__footer {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.bull-card__footer-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.bull-card__number {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-ink-faint);
}

.bull-card__disclaimer {
  font-size: 10px;
  color: var(--color-ink-faint);
}

.bull-card__qr-area {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-shrink: 0;
}

.bull-card__qr-hint {
  font-size: 10px;
  color: var(--color-ink-faint);
  text-align: right;
  line-height: 1.4;
  white-space: nowrap;
}

.bull-card__qr {
  width: 68px;
  height: 68px;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 0;
  flex-shrink: 0;
  overflow: hidden;
}

/* 二维码 SVG 必须跟随外框缩放，避免 WAP 断点下固定 50px 宽度溢出。 */
.bull-card__qr svg,
.bull-card__qr img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.card-modal__actions {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.card-modal__actions .btn { flex: 1; }

/* ========================================
   确认弹窗（偷偷换一头）
   ======================================== */
.confirm {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(43, 36, 32, 0.7);
  backdrop-filter: blur(4px);
  padding: var(--sp-6);
}

.confirm.active { display: flex; animation: modal-in 200ms var(--ease-smooth); }

.confirm__box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--sp-8) var(--sp-6);
  max-width: 320px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: card-pop 300ms var(--ease-elastic);
}

.confirm__title {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--sp-3);
  color: var(--color-ink);
}

.confirm__desc {
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
  line-height: 1.6;
  margin-bottom: var(--sp-6);
}

.confirm__actions {
  display: flex;
  gap: var(--sp-3);
}

.confirm__actions .btn { flex: 1; }

/* ========================================
   Toast 提示
   ======================================== */
.toast {
  position: fixed;
  bottom: var(--sp-12);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-ink);
  color: #fff;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  z-index: 200;
  opacity: 0;
  transition: transform 300ms var(--ease-elastic), opacity 300ms;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

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

/* ========================================
   好友入口页
   ======================================== */
.friend {
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--sp-6);
}

.friend__hint {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  color: var(--color-ink-soft);
  letter-spacing: 0.1em;
}

.friend__card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--sp-8) var(--sp-6);
  width: 100%;
  max-width: 320px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
}

.friend__label {
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
}

.friend__bull-icon { width: 100px; height: 100px; }

.friend__bull-name {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 900;
  letter-spacing: 0.1em;
}

.friend__cta {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-ink);
  margin-top: var(--sp-4);
}

/* ========================================
   页脚声明
   ======================================== */
.disclaimer {
  margin-top: auto;
  padding-top: var(--sp-8);
  font-size: var(--fs-xs);
  color: var(--color-ink-faint);
  text-align: center;
  letter-spacing: 0.05em;
}

/* ========================================
   响应式 — PC + WAP 全面兼容
   ======================================== */

/* WAP：缩减牛卡纵向密度，保证底部编号和二维码始终完整。 */
@media (max-width: 767px) {
  .card-modal {
    padding: var(--sp-3);
    padding:
      max(var(--sp-3), env(safe-area-inset-top))
      max(var(--sp-3), env(safe-area-inset-right))
      max(var(--sp-3), env(safe-area-inset-bottom))
      max(var(--sp-3), env(safe-area-inset-left));
  }
  .card-modal__inner { max-width: 360px; }
  .bull-card__content { padding: var(--sp-4) var(--sp-4) var(--sp-3); }
  .bull-card__header { margin-bottom: var(--sp-2); }
  .bull-card__visual { gap: var(--sp-2); }
  .bull-card__icon { width: 82px; height: 82px; }
  .bull-card__name { font-size: var(--fs-2xl); }
  .bull-card__fortune { margin-top: 0; }
  .bull-card__tags { gap: 6px; margin-top: var(--sp-1); }
  .bull-card__copy { margin-top: var(--sp-2); line-height: 1.55; }
  .bull-card__divider { margin: var(--sp-2) 0; }
  .bull-card__qr { width: 68px; height: 68px; }
  .card-modal__actions { gap: var(--sp-2); margin-top: var(--sp-3); }
}

/* 极小屏（≤320px）：iPhone SE 等小屏设备 */
@media (max-width: 320px) {
  :root {
    --fs-5xl: 3rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.625rem;
    --fs-2xl: 1.375rem;
    --fs-xl: 1.125rem;
    --fs-lg: 1rem;
  }
  .screen { padding: var(--sp-6) var(--sp-4); }
  .home__bull { width: 80px; height: 80px; }
  .home__summon-btn { padding: var(--sp-3) var(--sp-8); font-size: var(--fs-lg); }
  .result__bull-visual { width: 110px; height: 110px; }
  .result__bull-icon { width: 90px; height: 90px; }
  .result__rarity { font-size: var(--fs-sm); padding: 4px 12px; top: -6px; right: -10px; }
  .bull-card__content { padding: var(--sp-3); }
  .bull-card__header { margin-bottom: var(--sp-1); }
  .bull-card__visual { gap: 6px; }
  .bull-card__icon { width: 68px; height: 68px; }
  .bull-card__name { font-size: var(--fs-xl); }
  .bull-card__tag { padding: 2px 7px 2px 5px; font-size: 11px; }
  .bull-card__copy { margin-top: var(--sp-1); font-size: 12px; line-height: 1.45; }
  .bull-card__divider { margin: 6px 0; }
  .bull-card__qr-hint { display: none; }
  .bull-card__qr { width: 68px; height: 68px; padding: 0; }
  .card-modal {
    padding: var(--sp-2);
    padding:
      max(var(--sp-2), env(safe-area-inset-top))
      max(var(--sp-2), env(safe-area-inset-right))
      max(var(--sp-2), env(safe-area-inset-bottom))
      max(var(--sp-2), env(safe-area-inset-left));
  }
  .card-modal__actions .btn { padding-inline: var(--sp-3); font-size: var(--fs-sm); }
  .summon-stage { width: 240px; height: 240px; }
  .summon-content__bull-icon { width: 52px; height: 52px; }
  .summon-content__bull-name { font-size: var(--fs-xl); }
  .particle { transform: rotate(var(--p-angle, 0deg)) translateX(115px); }
}

/* 小屏（≤360px）：常见小屏手机 */
@media (min-width: 321px) and (max-width: 360px) {
  :root {
    --fs-4xl: 2.25rem;
    --fs-3xl: 1.875rem;
    --fs-2xl: 1.5rem;
  }
  .home__bull { width: 96px; height: 96px; }
  .result__bull-visual { width: 130px; height: 130px; }
  .result__bull-icon { width: 110px; height: 110px; }
  .summon-stage { width: 260px; height: 260px; }
}

/* 平板 / PC（≥768px）*/
@media (min-width: 768px) {
  :root { --maxw: 480px; }
  .app { box-shadow: var(--shadow-lg); }
  .card-modal__inner { max-width: 380px; }
}

/* 大屏 PC（≥1024px）*/
@media (min-width: 1024px) {
  :root { --maxw: 500px; }
}

/* ========================================
   召唤动画系统 — 多阶段仪式感体验
   阶段: 出现 → 感应 → 能量流滚动 → 光环爆发揭晓
   ======================================== */

.draw {
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: var(--sp-8);
  overflow: hidden;
}

/* 背景渐变层 — 抽取时背景微微发光 */
.draw__bg-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(circle at 50% 45%, rgba(232, 160, 44, 0.12), transparent 60%);
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth);
  pointer-events: none;
}
.draw.s--active .draw__bg-glow { opacity: 1; }
.draw.s--reveal .draw__bg-glow {
  background: radial-gradient(circle at 50% 45%, var(--reveal-glow, rgba(232, 160, 44, 0.2)), transparent 60%);
  opacity: 1;
}

/* 召唤舞台 */
.summon-stage {
  position: relative;
  z-index: 1;
  width: 300px;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.5s var(--ease-smooth), transform 0.5s var(--ease-elastic);
}
.draw.s--active .summon-stage { opacity: 1; transform: scale(1); }

/* ---- 召唤阵圆环 ---- */

/* 外环：虚线，顺时针旋转 */
.summon-ring-outer {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px dashed rgba(232, 160, 44, 0.4);
  border-radius: 50%;
  animation: ring-spin-cw 12s linear infinite;
}

/* 中环：渐变弧线，逆时针旋转 */
.summon-ring-mid {
  position: absolute;
  width: 82%;
  height: 82%;
  border: 3px solid transparent;
  border-top-color: var(--color-primary);
  border-right-color: var(--color-gold);
  border-radius: 50%;
  animation: ring-spin-ccw 6s linear infinite;
  filter: drop-shadow(0 0 6px rgba(217, 72, 46, 0.3));
}

/* 内环：点线，顺时针快速旋转 */
.summon-ring-inner {
  position: absolute;
  width: 68%;
  height: 68%;
  border: 2px dotted rgba(217, 72, 46, 0.3);
  border-radius: 50%;
  animation: ring-spin-cw 4s linear infinite;
}

@keyframes ring-spin-cw {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes ring-spin-ccw {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

/* 揭晓阶段：圆环变为最终牛的颜色 */
.draw.s--reveal .summon-ring-outer { border-color: var(--reveal-color, rgba(232, 160, 44, 0.4)); }
.draw.s--reveal .summon-ring-mid { border-top-color: var(--reveal-color, var(--color-primary)); }
.draw.s--reveal .summon-ring-inner { border-color: var(--reveal-color-light, rgba(217, 72, 46, 0.3)); }

/* ---- 发光核心 ---- */
.summon-core {
  position: relative;
  width: 56%;
  height: 56%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(253, 234, 228, 0.8) 0%, rgba(232, 160, 44, 0.15) 60%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 30px rgba(232, 160, 44, 0.25),
    inset 0 0 24px rgba(217, 72, 46, 0.1);
  transition: box-shadow 0.6s var(--ease-smooth), background 0.6s var(--ease-smooth);
  overflow: hidden;
}

.draw.s--sense .summon-core {
  box-shadow:
    0 0 50px rgba(232, 160, 44, 0.35),
    inset 0 0 30px rgba(217, 72, 46, 0.15);
  animation: core-breathe 1.5s ease-in-out infinite;
}

.draw.s--roll .summon-core {
  animation: core-breathe 0.4s ease-in-out infinite;
}

.draw.s--reveal .summon-core {
  background: radial-gradient(circle, var(--reveal-glow-strong, rgba(253, 234, 228, 0.9)) 0%, var(--reveal-glow, rgba(232, 160, 44, 0.2)) 60%, transparent 100%);
  box-shadow:
    0 0 60px var(--reveal-color, rgba(232, 160, 44, 0.4)),
    inset 0 0 40px rgba(255, 255, 255, 0.2);
  animation: core-reveal 0.6s var(--ease-elastic);
}

@keyframes core-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes core-reveal {
  0% { transform: scale(0.9); }
  60% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ---- 中心内容 ---- */
.summon-content {
  text-align: center;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-1);
}

.summon-content__text {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
  letter-spacing: 0.15em;
  line-height: 1.6;
}

.summon-content__bull-name {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 900;
  color: var(--color-ink);
  letter-spacing: 0.1em;
}

.summon-content__bull-icon {
  width: 64px;
  height: 64px;
}

/* 内容切换动画 */
.summon-content--flip {
  animation: content-flip 0.12s var(--ease-smooth);
}

@keyframes content-flip {
  0% { opacity: 0; transform: scale(0.7) translateY(8px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* 揭晓时内容弹出 */
.draw.s--reveal .summon-content {
  animation: reveal-pop 0.6s var(--ease-elastic);
}

@keyframes reveal-pop {
  0% { opacity: 0; transform: scale(0.5) rotate(-8deg); }
  60% { opacity: 1; transform: scale(1.15) rotate(2deg); }
  100% { transform: scale(1) rotate(0); }
}

/* ---- 粒子轨道系统 ---- */
.summon-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  background: var(--color-gold);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--color-gold);
  transform: rotate(var(--p-angle, 0deg)) translateX(145px);
  opacity: 0;
  animation: particle-pulse 1.8s ease-in-out infinite;
  animation-delay: var(--p-delay, 0s);
}

.draw.s--sense .particle,
.draw.s--roll .particle { opacity: 1; }

@keyframes particle-pulse {
  0%, 100% { opacity: 0.3; box-shadow: 0 0 4px var(--color-gold); }
  50% { opacity: 1; box-shadow: 0 0 10px var(--color-gold); }
}

/* 揭晓时粒子向外爆发 */
.draw.s--reveal .particle {
  animation: particle-burst 0.8s var(--ease-smooth) forwards;
  background: var(--reveal-color, var(--color-gold));
  box-shadow: 0 0 10px var(--reveal-color, var(--color-gold));
}

@keyframes particle-burst {
  0% {
    opacity: 1;
    transform: rotate(var(--p-angle, 0deg)) translateX(145px) scale(1);
  }
  100% {
    opacity: 0;
    transform: rotate(var(--p-angle, 0deg)) translateX(260px) scale(0.3);
  }
}

/* ---- 光环爆发 ---- */
.summon-burst {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.burst-ring {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  opacity: 0;
}

.draw.s--reveal .burst-ring {
  animation: burst-expand 0.9s var(--ease-smooth) forwards;
  border-color: var(--reveal-color, var(--color-primary));
}

.draw.s--reveal .burst-ring:nth-child(2) { animation-delay: 0.12s; }
.draw.s--reveal .burst-ring:nth-child(3) { animation-delay: 0.24s; }

@keyframes burst-expand {
  0% { width: 100px; height: 100px; opacity: 0.9; border-width: 4px; }
  100% { width: 420px; height: 420px; opacity: 0; border-width: 1px; }
}

/* ---- 提示文字 ---- */
.draw__hint {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--color-ink-soft);
  letter-spacing: 0.12em;
  animation: hint-pulse 1.5s ease-in-out infinite;
  min-height: 1.8em;
  transition: opacity 0.3s;
}

@keyframes hint-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* 揭晓阶段：隐藏提示文字 */
.draw.s--reveal .draw__hint {
  animation: none;
  opacity: 0;
}

/* ---- 进度指示器 ---- */
.draw__progress {
  position: relative;
  z-index: 1;
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}

.draw__progress-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-line);
  transition: background 0.3s, transform 0.3s;
}

.draw__progress-dot.is-active {
  background: var(--color-primary);
  transform: scale(1.3);
}

.draw__progress-dot.is-done {
  background: var(--color-gold);
}

/* 尊重减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}