/* ============================================
   图文营销-确定商品关键信息 全局样式
   新媒体营销风格：大胆渐变、玻璃拟态、现代排版
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --coral: #FF6B6B;
  --coral-light: #FF8E53;
  --teal: #4FACFE;
  --teal-dark: #00C9FF;
  --purple: #A855F7;
  --purple-dark: #7C3AED;
  --navy: #0F172A;
  --navy-light: #1E293B;
  --slate: #334155;
  --gray: #64748B;
  --light: #F8FAFC;
  --white: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.18);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

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

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--navy);
  color: #E2E8F0;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 全局背景装饰 */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(79, 172, 254, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 30%, rgba(255, 107, 107, 0.08) 0%, transparent 40%);
  z-index: -1;
  animation: bgFloat 20s ease-in-out infinite alternate;
}

@keyframes bgFloat {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-3%, 2%) rotate(2deg); }
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* ===== 通用组件 ===== */

/* 玻璃卡片 */
.glass-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 40px rgba(0,0,0,0.2);
}

/* 白色卡片（内容区） */
.content-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: var(--navy);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0,0,0,0.04);
}

.content-card h3, .content-card h4, .content-card h5 {
  color: var(--navy);
}

/* 渐变按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: 50px;
  font-size: 0.95em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(rgba(255,255,255,0.15), transparent);
  pointer-events: none;
}

.btn-coral {
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(255, 107, 107, 0.35);
}

.btn-coral:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 107, 107, 0.45);
}

.btn-teal {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(79, 172, 254, 0.35);
}

.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79, 172, 254, 0.45);
}

.btn-purple {
  background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(168, 85, 247, 0.35);
}

.btn-purple:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(168, 85, 247, 0.45);
}

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: #E2E8F0;
  border: 1px solid rgba(255,255,255,0.15);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 输入框 */
input[type="text"], input[type="password"], input[type="number"],
textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  font-size: 1em;
  font-family: inherit;
  background: rgba(15, 23, 42, 0.6);
  color: #E2E8F0;
  transition: all 0.3s ease;
}

input[type="text"]:focus, input[type="password"]:focus, input[type="number"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(79, 172, 254, 0.15);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* 白色背景输入框 */
.white-input {
  background: var(--white);
  color: var(--navy);
  border-color: #E2E8F0;
}

.white-input:focus {
  border-color: var(--teal);
}

/* 滑块 */
input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.1);
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(79, 172, 254, 0.4);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  cursor: pointer;
  border: none;
}

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.82em;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-xiaomi {
  background: rgba(255, 107, 107, 0.15);
  color: var(--coral);
}

.badge-custk {
  background: rgba(79, 172, 254, 0.15);
  color: var(--teal);
}

.badge-task {
  background: rgba(168, 85, 247, 0.15);
  color: var(--purple);
}

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(79, 172, 254, 0.2); }
  50% { box-shadow: 0 0 40px rgba(79, 172, 254, 0.4); }
}

.fade-in { animation: fadeInUp 0.4s ease forwards; }
.fade-in-delay-1 { animation: fadeInUp 0.4s ease 0.1s forwards; opacity: 0; }
.fade-in-delay-2 { animation: fadeInUp 0.4s ease 0.2s forwards; opacity: 0; }
.fade-in-delay-3 { animation: fadeInUp 0.4s ease 0.3s forwards; opacity: 0; }

/* 渐变文字 */
.gradient-text {
  background: linear-gradient(135deg, var(--coral) 0%, var(--purple) 50%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-teal {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 响应式 */
@media (max-width: 768px) {
  .container { padding: 12px; }
  .content-card { padding: 20px; }
  .glass-card { padding: 16px; }
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }