/* ==========================================================================
   计算页共用样式（模式一 index.html / 模式二 success2.html）
   2026-10-21 新增：把原来 800px 固定宽度 + float 的旧布局换成响应式卡片。

   原页面的问题：固定 800px 在手机上溢出；用 <label> 假扮按钮、input 被
   visibility:hidden 藏起来；没有步骤引导；flash 消息以纯文本返回。
   这里只重写视觉与布局，表单 action、字段名、拖拽逻辑全部保持原样。
   ========================================================================== */

.calc-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 26px 20px 70px;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

.calc-title {
  font-size: 21px;
  color: #111827;
  margin: 0 0 4px;
  font-weight: 600;
}

.calc-sub {
  font-size: 13.5px;
  color: #6b7280;
  margin: 0 0 22px;
}

/* ---------- 步骤条 ---------- */
.calc-steps {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.calc-step {
  flex: 1 1 160px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  font-size: 13.5px;
  color: #6b7280;
}
.calc-step .num {
  flex: 0 0 auto;
  width: 24px; height: 24px; border-radius: 50%;
  background: #e5e7eb; color: #6b7280;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.calc-step.done { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.calc-step.done .num { background: #22c55e; color: #fff; }
.calc-step.active { background: #eff6ff; border-color: #93c5fd; color: #1d4ed8; }
.calc-step.active .num { background: #0287FF; color: #fff; }

/* ---------- 卡片 ---------- */
.calc-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 13px;
  padding: 20px 22px;
  margin-bottom: 18px;
}
.calc-card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px; flex-wrap: wrap;
}
.calc-card-head h3 {
  font-size: 16px; color: #111827; margin: 0; font-weight: 600;
}

/* 状态徽标 */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 11px; border-radius: 20px;
  font-size: 12.5px; font-weight: 600; white-space: nowrap;
}
.badge.wait { background: #f3f4f6; color: #6b7280; }
.badge.ok { background: #dcfce7; color: #15803d; }
.badge.warn { background: #fef3c7; color: #b45309; }

/* ---------- 拖拽区 ---------- */
.calc-drop {
  border: 2px dashed #cbd5e1;
  border-radius: 11px;
  background: #f8fafc;
  padding: 26px 18px;
  text-align: center;
  color: #64748b;
  font-size: 14px;
  transition: border-color .15s, background .15s;
  cursor: pointer;
  min-height: 96px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  word-break: break-all;
}
.calc-drop:hover, .calc-drop.over { border-color: #0287FF; background: #eff6ff; }
.calc-drop .file-name { font-weight: 600; color: #1d4ed8; font-size: 14.5px; }
.calc-drop .hint { font-size: 12.5px; color: #94a3b8; }

.calc-file-input { display: none; }   /* 真正的 file input 藏起来，用 label 触发 */

/* ---------- 按钮 ---------- */
.calc-btn {
  display: inline-block;
  padding: 11px 26px;
  border: 0; border-radius: 9px;
  background: #0287FF; color: #fff !important;
  font-size: 15px; font-weight: 600;
  cursor: pointer; text-decoration: none !important;
  transition: background .15s, transform .15s;
}
.calc-btn:hover { background: #0066cc; transform: translateY(-1px); }
.calc-btn.ghost { background: #fff; color: #0287FF !important; border: 1px solid #0287FF; }
.calc-btn.ghost:hover { background: #eff6ff; }
.calc-btn.big { padding: 13px 40px; font-size: 16px; }
.calc-btn[disabled] { background: #9ca3af; cursor: not-allowed; transform: none; }

.calc-actions {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  margin-top: 6px;
}

/* ---------- flash 消息 ---------- */
.calc-flash { margin-bottom: 18px; }
.calc-flash .item {
  padding: 11px 14px; border-radius: 9px; margin-bottom: 8px;
  font-size: 13.5px; line-height: 1.6;
}
.calc-flash .item.success { background: #dcfce7; color: #15803d; }
.calc-flash .item.error { background: #fee2e2; color: #b91c1c; }
.calc-flash .item.info { background: #dbeafe; color: #1d4ed8; }

/* ---------- 下载区 ---------- */
.calc-download {
  background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%);
  border: 1px solid #bfdbfe;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .calc-wrap { padding: 16px 14px 50px; }
  .calc-title { font-size: 18px; }
  .calc-steps { gap: 8px; }
  .calc-step { flex: 1 1 100%; padding: 9px 12px; font-size: 13px; }
  .calc-card { padding: 16px; }
  .calc-drop { padding: 20px 14px; min-height: 84px; }
  .calc-btn { width: 100%; text-align: center; }
  .calc-actions { flex-direction: column; align-items: stretch; }
  .calc-btn.big { width: 100%; }
}