/* ============ 钢柱重量计算器样式 ============ */
.scw-wrap {
  --scw-primary: #1e5bb8;
  --scw-primary-dark: #154795;
  --scw-primary-light: #e8f1fc;
  --scw-accent: #ff7043;
  --scw-text: #1f2937;
  --scw-text-light: #6b7280;
  --scw-border: #e5e7eb;
  --scw-bg: #f7f9fc;
  --scw-card: #ffffff;
  --scw-shadow: 0 2px 8px rgba(30,91,184,0.08);
  --scw-shadow-hover: 0 8px 24px rgba(30,91,184,0.12);
  all: initial;
  display: block;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--scw-text);
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 16px;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-break: break-word;
}
.scw-wrap * { box-sizing: border-box; }
.scw-wrap .scw-container { max-width: 1200px; margin: 0 auto; padding: 0; }

.scw-wrap .scw-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  margin: 20px 0;
}
.scw-wrap .scw-type-card {
  background: var(--scw-card);
  border: 2px solid var(--scw-border);
  border-radius: 12px;
  padding: 14px 10px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  user-select: none;
}
.scw-wrap .scw-type-card:hover { border-color: var(--scw-primary); transform: translateY(-2px); box-shadow: var(--scw-shadow); }
.scw-wrap .scw-type-card.scw-active {
  border-color: var(--scw-primary);
  background: var(--scw-primary-light);
  box-shadow: var(--scw-shadow-hover);
}
.scw-wrap .scw-type-card .scw-icon {
  width: 44px; height: 44px;
  margin: 0 auto 6px;
  display: flex; align-items: center; justify-content: center;
  background: var(--scw-primary-light);
  border-radius: 10px;
  color: var(--scw-primary);
}
.scw-wrap .scw-type-card.scw-active .scw-icon { background: var(--scw-primary); color: #fff; }
.scw-wrap .scw-type-card .scw-name { font-size: 13px; font-weight: 600; }
.scw-wrap .scw-type-card .scw-desc { font-size: 11px; color: var(--scw-text-light); margin-top: 2px; }

.scw-wrap .scw-main-panel {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  margin-top: 18px;
}
.scw-wrap .scw-main-panel > .scw-panel { min-width: 0; overflow: hidden; }
@media (max-width: 860px) { .scw-wrap .scw-main-panel { grid-template-columns: 1fr; } }

.scw-wrap .scw-panel {
  background: var(--scw-card);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--scw-shadow);
  overflow-wrap: break-word;
  word-break: break-word;
}
.scw-wrap .scw-panel-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--scw-primary-dark);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--scw-primary-light);
  display: flex;
  align-items: center;
  gap: 8px;
}
.scw-wrap .scw-panel-title::before {
  content: '';
  width: 4px; height: 16px;
  background: var(--scw-primary);
  border-radius: 2px;
}

.scw-wrap .scw-spec-hint {
  font-size: 12px;
  color: var(--scw-text-light);
  background: #f3f4f6;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 14px;
  border-left: 3px solid var(--scw-accent);
  overflow-wrap: break-word;
  word-break: break-word;
}

.scw-wrap .scw-form-group { margin-bottom: 14px; }
.scw-wrap .scw-form-group label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  color: var(--scw-text);
  margin-bottom: 6px;
}
.scw-wrap .scw-form-group label .scw-unit { color: var(--scw-text-light); font-weight: 400; font-size: 12px; }
.scw-wrap .scw-input-row { display: flex; gap: 8px; align-items: center; }
.scw-wrap .scw-input-row input {
  flex: 1;
  padding: 9px 11px;
  border: 1.5px solid var(--scw-border);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.2s;
  font-family: inherit;
  color: var(--scw-text);
  background: #fff;
  width: 100%;
}
.scw-wrap .scw-input-row input:focus {
  outline: none;
  border-color: var(--scw-primary);
  box-shadow: 0 0 0 3px var(--scw-primary-light);
}

.scw-wrap .scw-quick-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.scw-wrap .scw-quick-spec {
  background: #f3f4f6;
  border: 1px solid var(--scw-border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  color: var(--scw-text-light);
  transition: all 0.15s;
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.scw-wrap .scw-quick-spec:hover { background: var(--scw-primary-light); color: var(--scw-primary-dark); border-color: var(--scw-primary); }

.scw-wrap .scw-btn {
  width: 100%;
  padding: 11px;
  background: var(--scw-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 8px;
  font-family: inherit;
}
.scw-wrap .scw-btn:hover { background: var(--scw-primary-dark); }
.scw-wrap .scw-btn:active { transform: scale(0.99); }

.scw-wrap .scw-result-card {
  background: linear-gradient(135deg, #f0f7ff 0%, #e0effe 100%);
  border: 1.5px solid #bfdbfe;
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  margin-bottom: 14px;
}
.scw-wrap .scw-result-card .scw-label { font-size: 13px; color: var(--scw-text-light); margin-bottom: 6px; }
.scw-wrap .scw-result-card .scw-value {
  font-size: 34px;
  font-weight: 800;
  color: var(--scw-primary-dark);
  line-height: 1.1;
}
.scw-wrap .scw-result-card .scw-unit-tag { font-size: 16px; font-weight: 600; color: var(--scw-primary); margin-left: 4px; }

.scw-wrap .scw-result-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.scw-wrap .scw-result-item {
  background: var(--scw-bg);
  border-radius: 8px;
  padding: 11px;
  text-align: center;
  min-width: 0;
  overflow-wrap: break-word;
}
.scw-wrap .scw-result-item .scw-k { font-size: 12px; color: var(--scw-text-light); margin-bottom: 4px; }
.scw-wrap .scw-result-item .scw-v { font-size: 16px; font-weight: 700; color: var(--scw-text); word-break: break-all; }

.scw-wrap .scw-diagram {
  text-align: center;
  background: var(--scw-bg);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 16px;
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scw-wrap .scw-diagram svg { max-width: 100%; max-height: 150px; }

.scw-wrap .scw-formula-box {
  background: #fff7ed;
  border-left: 3px solid var(--scw-accent);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 12px;
  color: #92400e;
  margin-top: 12px;
  line-height: 1.7;
}
.scw-wrap .scw-formula-box code { background: #fef3c7; padding: 1px 5px; border-radius: 3px; font-family: Consolas, monospace; }

.scw-wrap .scw-history { margin-top: 14px; }
.scw-wrap .scw-history-title { font-size: 13px; font-weight: 600; color: var(--scw-text-light); margin-bottom: 8px; }
.scw-wrap .scw-history-item {
  background: var(--scw-bg);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  color: var(--scw-text-light);
  cursor: pointer;
  min-width: 0;
  overflow: hidden;
}
.scw-wrap .scw-history-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.scw-wrap .scw-history-item span:first-child { flex: 1; min-width: 0; margin-right: 8px; }
.scw-wrap .scw-history-item:hover { background: var(--scw-primary-light); color: var(--scw-primary-dark); }
.scw-wrap .scw-history-empty { text-align: center; color: var(--scw-text-light); font-size: 12px; padding: 18px; }

.scw-wrap .scw-footer {
  text-align: center;
  color: var(--scw-text-light);
  font-size: 12px;
  padding: 20px 12px;
  margin-top: 20px;
}
.scw-wrap .scw-footer a { color: var(--scw-primary); text-decoration: none; }

.scw-wrap .scw-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #1f2937;
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  transition: all 0.3s;
  z-index: 99999;
  pointer-events: none;
}
.scw-wrap .scw-toast.scw-show { transform: translateX(-50%) translateY(0); opacity: 1; }