/* 全局样式与暗黑模式支持 */
:root {
  --bg-color: #f4f4f8;
  --text-color: #222;
  --panel-bg: #fff;
  --border-color: #ccc;
  --btn-bg: #e0e0e0;
  --btn-hover: #d0d0d0;
  --log-bg: #fdfdfd;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --panel-bg: #1e1e1e;
    --border-color: #444;
    --btn-bg: #333;
    --btn-hover: #444;
    --log-bg: #1a1a1a;
  }
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: "Segoe UI", "PingFang SC", "Helvetica Neue", sans-serif;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
}

h1 {
  text-align: center;
  font-size: 2em;
  margin-bottom: 30px;
  background: linear-gradient(90deg, #00c9ff, #92fe9d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.control-panel {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  background: var(--panel-bg);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}

.control-item {
  flex: 1;
  text-align: center;
}

.control-btn {
  background-color: var(--btn-bg);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  padding: 15px;
  border-radius: 10px;
  font-size: 1em;
  cursor: pointer;
  transition: background 0.2s;
  width: 100%;
}

.control-btn:hover {
  background-color: var(--btn-hover);
}

.control-btn.active {
  border-color: #4caf50;
  background: linear-gradient(135deg, #43e97b, #38f9d7);
  color: #000;
  font-weight: bold;
}

.control-btn.blocked {
  background: #ff6b6b;
  color: white;
  border-color: #e53935;
}

.control-btn.real {
  background: #ffd54f;
  color: #000;
  border-color: #ffa000;
}

.control-description {
  font-size: 0.9em;
  margin-top: 8px;
}

.hangup-panel {
  margin-top: 30px;
  text-align: center;
}

.hangup-btn {
  width: 100%;
  background: linear-gradient(135deg, #ff4d4f, #ff6e7f); /* 浅色模式用这个 */
  color: white;
  padding: 15px;
  font-size: 1em;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(255, 77, 79, 0.25);
  transition: background 0.2s, transform 0.1s;
}

.hangup-btn:hover {
  background: linear-gradient(135deg, #e53935, #ff5252);
  transform: scale(1.02);
}

.description {
  margin-top: 10px;
  font-size: 0.9em;
}

.log {
  margin-top: 40px;
  background: var(--log-bg);
  padding: 20px;
  border-radius: 10px;
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
}

#log-content div {
  margin-bottom: 6px;
  font-size: 0.85em;
  color: var(--text-color);
}

.hangup-btn:active {
  transform: scale(0.96);
  background: linear-gradient(135deg, #cc2b2b, #e64545); /* 深一点的红色 */
  box-shadow: 0 2px 8px rgba(255, 77, 79, 0.2);
}

.wifi-off-btn {
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  box-shadow: 0 4px 12px rgba(0, 114, 255, 0.25);
}

.wifi-off-btn:hover {
  background: linear-gradient(135deg, #005bea, #00c6ff);
}

.wifi-off-btn:active {
  transform: scale(0.96);
  background: linear-gradient(135deg, #0041c4, #008cff);
  box-shadow: 0 2px 8px rgba(0, 114, 255, 0.2);
}