/* ============================================
   菁信官网 - 问卷调查模块样式
   列表卡片 + 详情表单（单选/多选/填空）+ 提交完成态
   ============================================ */

/* ---------- 列表页 ---------- */
.survey-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.survey-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
}

.survey-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-bottom: 20px;
}

.survey-card__icon svg {
  width: 26px;
  height: 26px;
}

.survey-card h2 {
  font-size: var(--fs-h4);
  color: var(--c-navy);
  line-height: 1.4;
}

.survey-card__intro {
  margin-top: 12px;
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.7;
  flex: 1;
}

.survey-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  font-size: var(--fs-xs);
  color: var(--c-text-3);
}

.survey-card__meta .views {
  color: var(--c-primary);
  font-weight: 600;
}

.survey-card .btn {
  margin-top: 18px;
  align-self: flex-start;
}

/* ---------- 详情页 ---------- */
.survey-detail {
  max-width: 860px;
  margin: 0 auto;
  padding: 44px 48px;
}

.survey-detail__head h1 {
  font-size: var(--fs-h3);
  color: var(--c-navy);
  line-height: 1.4;
}

.survey-detail__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  font-size: var(--fs-xs);
  color: var(--c-text-3);
}

.survey-detail__meta .views {
  color: var(--c-primary);
  font-weight: 600;
}

.survey-detail__anon {
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(34, 193, 220, 0.1);
  color: var(--c-cyan);
  font-weight: 600;
}

.survey-detail__head > p {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--c-bg-soft);
  border-radius: 10px;
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.7;
}

/* ---------- 题目 ---------- */
.survey-q {
  padding: 26px 0;
  border-bottom: 1px solid var(--c-bg-soft);
}

.survey-q:last-of-type {
  border-bottom: none;
}

.survey-q__title {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--c-navy);
  line-height: 1.6;
}

.survey-q__title .req {
  color: #dc2626;
  margin-right: 4px;
}

.survey-q__options {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

@media (min-width: 640px) {
  .survey-q__options--cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 选项label */
.survey-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  font-size: var(--fs-sm);
  color: var(--c-text-1);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  user-select: none;
}

.survey-opt:hover {
  border-color: var(--c-primary);
}

.survey-opt.is-checked {
  border-color: var(--c-primary);
  background: rgba(20, 102, 240, 0.05);
  color: var(--c-primary);
  font-weight: 600;
}

.survey-opt input {
  accent-color: var(--c-primary);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* 填空题 */
.survey-q__text {
  margin-top: 14px;
  width: 100%;
  min-height: 88px;
  padding: 14px 16px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  font-size: var(--fs-sm);
  font-family: inherit;
  resize: vertical;
}

.survey-q__text:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(20, 102, 240, 0.12);
}

/* ---------- 提交区 ---------- */
.survey-submit {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

/* ---------- 完成态 ---------- */
.survey-done {
  text-align: center;
  padding: 30px 0 10px;
}

.survey-done h2 {
  font-size: var(--fs-h4);
  color: #16a34a;
}

.survey-done p {
  margin: 14px 0 24px;
  color: var(--c-text-2);
  font-size: var(--fs-base);
}

.survey-done strong {
  color: var(--c-primary);
  font-size: 1.3em;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .survey-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .survey-grid {
    grid-template-columns: 1fr;
  }

  .survey-detail {
    padding: 28px 20px;
  }

  .survey-submit {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}