/**
 * Block 4 — 迷思 QA 風琴夾
 * Q：Bebas Neue（高窄英字）；僅 Q 區藍底，題目黑字 + 線框
 */

.section-qa {
  padding-top: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(28px, 4vw, 56px);
}

.section-qa .container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 24px);
}

.section-qa__header {
  text-align: center;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.section-qa__eyebrow {
  display: inline-block;
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #42a3e8;
}

.section-qa__title {
  margin: 0;
  font-family: "Noto Serif TC", "Noto Sans TC", "Microsoft JhengHei", serif;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  font-weight: 700;
  color: #0f172a;
  line-height: 1.35;
}

.qa-accordion {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2vw, 18px);
}

.qa-item {
  border: 2px solid #42a3e8;
  border-radius: 7px;
  background: #fff;
  background-color: #ffffff;
  box-shadow: 0 2px 12px rgba(66, 163, 232, 0.08);
  overflow: hidden;
}

.qa-header {
  display: flex;
  align-items: stretch;
  width: 100%;
  margin: 0;
  padding: 0;
  border: none;
  background: #fff;
  background-color: #ffffff;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
  min-height: 3.5rem;
}

.qa-header:focus {
  outline: 2px solid #42a3e8;
  outline-offset: 2px;
}

.qa-header:focus:not(:focus-visible) {
  outline: none;
}

/* 僅 Q 區：藍底白字，高窄字體（附圖風格） */
.qa-q-tag {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(3.5rem, 8vw, 4.25rem);
  min-width: 3.5rem;
  padding: 10px 6px;
  background: #42a3e8;
  color: #fff;
  font-family: "Bebas Neue", Impact, "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  font-weight: 400;
  font-size: clamp(2.125rem, 5vw, 2.875rem);
  line-height: 0.85;
  letter-spacing: 0.02em;
}

.qa-q-letter {
  display: inline-block;
  transform: translateY(0.02em);
}

.qa-q-letter::after {
  content: ".";
}

/* 題目：白底、黑字（無藍色滿版底） */
.qa-q-text {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 14px 12px 14px 16px;
  background: #fff;
  background-color: #ffffff;
  color: #0f172a;
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  font-weight: 700;
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.45;
}

.qa-chevron-wrap {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  min-width: 2.75rem;
  background: #fff;
  background-color: #ffffff;
  color: #42a3e8;
  transform-origin: 50% 50%;
  border-left: 1px solid rgba(66, 163, 232, 0.25);
}

.qa-chevron {
  display: block;
  transform-origin: 50% 50%;
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 9px solid currentColor;
}

.qa-panel {
  overflow: hidden;
  height: 0;
  background: #fff;
  background-color: #ffffff;
}

/* 藍色分隔線（銜接 Q / A） */
.qa-panel-inner {
  position: relative;
  padding: 0 18px 20px;
  border-top: none;
}

.qa-panel-inner::before {
  content: "";
  display: block;
  height: 2px;
  margin-left: -18px;
  margin-right: -18px;
  background: #42a3e8;
}

.qa-answer-row {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 16px;
  padding-top: 18px;
}

/* 完整顯示圖檔、不裁切為圓形 */
.qa-avatar {
  flex-shrink: 0;
  width: auto;
  height: auto;
  max-width: min(calc(160px / 3 * 1.5), calc(32vw / 3 * 1.5));
  max-height: min(calc(200px / 3 * 1.5), calc(38vw / 3 * 1.5));
  object-fit: contain;
  object-position: center bottom;
  display: block;
  border-radius: 0;
  border: none;
  background: transparent;
  transform-origin: 50% 85%;
  will-change: transform;
}

/* 答案僅文字，無對話框外框 */
.qa-bubble {
  flex: 1;
  min-width: 0;
  margin: 0;
  padding: 4px 0 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.qa-bubble p {
  margin: 0;
  font-size: clamp(0.875rem, 1.45vw, 1rem);
  line-height: 1.75;
  color: #334155;
}

@media (max-width: 640px) {
  .qa-header {
    min-height: 0;
  }

  .qa-q-tag {
    width: 3.25rem;
    min-width: 3.25rem;
    font-size: 2rem;
    padding: 8px 4px;
  }

  .qa-q-text {
    padding: 12px 10px 12px 12px;
    font-size: 0.9375rem;
  }

  .qa-chevron-wrap {
    width: 2.5rem;
    min-width: 2.5rem;
  }

  .qa-panel-inner {
    padding: 0 14px 18px;
  }

  .qa-panel-inner::before {
    margin-left: -14px;
    margin-right: -14px;
  }

  .qa-answer-row {
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding-top: 16px;
  }

  .qa-avatar {
    max-width: min(calc(140px / 3 * 1.5), calc(55vw / 3 * 1.5));
    max-height: min(calc(180px / 3 * 1.5), calc(45vw / 3 * 1.5));
  }

  .qa-bubble {
    width: 100%;
    max-width: 100%;
    padding-top: 2px;
  }
}