:root {
  --bg: #0f172a;
  --card-bg: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #60a5fa;
  --border: #1f2937;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background: radial-gradient(1200px 600px at 10% 10%, #172554, transparent 60%),
              radial-gradient(900px 500px at 90% 20%, #0b1022, transparent 60%),
              var(--bg);
  color: var(--text);
  display: grid;
  grid-template-rows: 1fr auto;
  overflow-x: hidden;
}

/* 弹幕区域 30% */
.barrage-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 30vh;
  pointer-events: none;
  z-index: 99;
  overflow: hidden;
}

/* 修复：默认隐藏在屏幕右侧，不会一开始就显示在左上角 */
.barrage-item {
  position: absolute;
  white-space: nowrap;
  font-weight: 500;
  text-shadow: 0 0 5px rgba(255,255,255,0.15);
  animation: barrageRoll linear infinite;
  transform: translateX(100vw); /* 初始位置在屏幕外右侧 */
}

@keyframes barrageRoll {
  0%   { transform: translateX(100vw); }
  100% { transform: translateX(-100%); }
}

.container {
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative; /* 为绝对定位的按钮提供参照 */
}

.card {
  width: 100%;
  max-width: 760px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.company-name {
  margin: 0 0 24px;
  font-size: 28px;
  text-align: center;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}

.info-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}

.label {
  color: var(--muted);
  font-size: 14px;
}

.value {
  color: var(--text);
  text-decoration: none;
}

.value:hover {
  color: var(--primary);
}

.footer {
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  color: var(--muted);
}

.footer-inner a {
  color: var(--muted);
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--primary);
}

.dot { opacity: 0.6; }

/* --- 新增：工具中心按钮样式 --- */
.tools-button {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 12px 24px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid #3b82f6;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  z-index: 10;
}

.tools-button:hover {
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.tools-button:active {
  transform: translateY(0);
}

@media (max-width: 640px) {
  .info-grid { grid-template-columns: 1fr; }
  .info-item { grid-template-columns: 100px 1fr; }
  .company-name { font-size: 24px; }
  
  /* 移动端适配：按钮稍微缩小并调整位置 */
  .tools-button {
    top: 16px;
    right: 16px;
    padding: 8px 16px;
    font-size: 12px;
  }
}