/* ============================================================
   杜牙根專題頁樣式（類名統一以 .zt_dyg 開頭）
   ============================================================ */

/* ==================== 服務標籤快速導航 ==================== */
.zt_dyg_tags {
  background: #e9f4ee;
  padding: 38px 16px 42px;
}

.zt_dyg_tags_list {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px 18px;
}

.zt_dyg_tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 16px;
  border-radius: 999px;
  background: #ffffff;
  color: #2f9e63;
  font-size: 19px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_tag:hover {
  background: #2f9e63;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(47, 158, 99, .25);
}

/* 當前頁（杜牙根）高亮 */
.zt_dyg_tag.is-active {
  background: #37a269;
  color: #ffffff;
  cursor: default;
}

.zt_dyg_tag.is-active:hover {
  background: #37a269;
  transform: none;
  box-shadow: none;
}

/* ==================== 杜牙根的治療方式 ==================== */
.zt_dyg_method {
  padding: 60px 16px 70px;
  background: url(../images/zt/dyg/zt_dyg_method.png) center / cover no-repeat;
}

.zt_dyg_method_title {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: #222222;
  letter-spacing: 2px;
}

.zt_dyg_method_line {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: #2f9e63;
}

.zt_dyg_method_desc {
  margin: 26px auto 0;
  max-width: 760px;
  text-align: center;
  font-size: 17px;
  line-height: 1.9;
  color: #333333;
}

.zt_dyg_method_table_wrap {
  max-width: 1000px;
  margin: 34px auto 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.zt_dyg_method_table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 2px;
  table-layout: fixed;
}

.zt_dyg_method_table th,
.zt_dyg_method_table td {
  border: 1px solid #ececec;
  vertical-align: middle;
}

/* 表頭 */
.zt_dyg_method_table thead th {
  padding: 15px 18px;
  background: #359d64;
  color: #ffffff;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  text-align: center;
}

.zt_dyg_method_th_cat {
  width: 150px;
}

/* 行頭（類別列） */
.zt_dyg_method_rowhead {
  background: #fafafa;
  color: #333333 !important;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  padding: 16px 12px;
}

/* 單元格 */
.zt_dyg_method_table td {
  padding: 20px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: #444444;
  background: #ffffff;
}

/* 步驟列表 */
.zt_dyg_method_steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.zt_dyg_method_steps li + li {
  margin-top: 12px;
}

.zt_dyg_method_steps strong {
  color: #222222;
  font-weight: 600;
}

/* 微創先進治療列：淡綠底 */
.zt_dyg_method_adv {
  background: #e9f4ec !important;
}

.zt_dyg_method_center {
  text-align: center;
}

/* 諮詢按鈕 */
.zt_dyg_method_btn {
  display: table;
  margin: 42px auto 0;
  padding: 15px 52px;
  border-radius: 10px;
  background: #f2a93b;
  color: #ffffff;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_method_btn:hover {
  background: #e59a26;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242, 169, 59, .35);
}

/* ==================== 什麼情況下需要杜牙根 ==================== */
.zt_dyg_need {
  padding: 60px 16px 70px;
  background: #ffffff;
}

.zt_dyg_need_title {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: #222222;
  letter-spacing: 2px;
}

.zt_dyg_need_line {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: #2f9e63;
}

.zt_dyg_need_list {
  margin: 44px auto 0;
  max-width: 840px;
  padding: 0;
  list-style: none;
}

.zt_dyg_need_item {
  display: flex;
  align-items: center;
  gap: 36px;
}

.zt_dyg_need_item + .zt_dyg_need_item {
  margin-top: 38px;
}

/* 圓形示意圖（帶淡綠細環） */
.zt_dyg_need_pic {
  flex: 0 0 auto;
  width: 158px;
  height: 158px;
  border-radius: 50%;
  border: 1px solid #8fd0ab;
  object-fit: cover;
  background: #ffffff;
}

.zt_dyg_need_body {
  flex: 1 1 auto;
  min-width: 0;
}

.zt_dyg_need_name {
  margin: 0 0 12px;
  font-size: 23px;
  font-weight: 700;
  color: #222222;
}

.zt_dyg_need_text {
  margin: 0;
  font-size: 17px;
  line-height: 1.95;
  color: #555555;
}

/* 在線諮詢按鈕 */
.zt_dyg_need_btn {
  display: table;
  margin: 50px auto 0;
  padding: 15px 58px;
  border-radius: 10px;
  background: #f2a93b;
  color: #ffffff;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 3px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_need_btn:hover {
  background: #e59a26;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242, 169, 59, .35);
}

/* ==================== 杜牙根治療全過程 ==================== */
.zt_dyg_process {
  padding: 60px 16px 70px;
  background: #f9f9f9;
}

.zt_dyg_process_title {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: #222222;
  letter-spacing: 2px;
}

.zt_dyg_process_line {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: #2f9e63;
}

.zt_dyg_process_list {
  margin: 56px auto 0;
  max-width: 1100px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 90px 70px;
}

.zt_dyg_process_item {
  text-align: center;
}

.zt_dyg_process_pic {
  display: block;
  margin: 0 auto;
  height: 240px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.zt_dyg_process_name {
  margin: 20px 0 12px;
  font-size: 22px;
  font-weight: 700;
  color: #222222;
}

.zt_dyg_process_text {
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: #555555;
}

/* 在線諮詢按鈕 */
.zt_dyg_process_btn {
  display: table;
  margin: 64px auto 0;
  padding: 18px 96px;
  border-radius: 10px;
  background: #f2a93b;
  color: #ffffff;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 6px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_process_btn:hover {
  background: #e59a26;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242, 169, 59, .35);
}

/* ==================== 常見問題 ==================== */
.zt_dyg_faq {
  padding: 60px 16px 70px;
  background: #ffffff;
}

.zt_dyg_faq_title {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: #222222;
  letter-spacing: 2px;
}

.zt_dyg_faq_line {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: #2f9e63;
}

.zt_dyg_faq_list {
  margin: 44px auto 0;
  max-width: 1000px;
  padding: 0;
  list-style: none;
}

.zt_dyg_faq_card {
  padding: 34px 48px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 4px 24px rgba(0, 0, 0, .07);
  transition: box-shadow .25s ease, transform .25s ease;
}

.zt_dyg_faq_card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
}

.zt_dyg_faq_card + .zt_dyg_faq_card {
  margin-top: 28px;
}

.zt_dyg_faq_q {
  margin: 0 0 14px;
  font-size: 23px;
  font-weight: 700;
  color: #2f9e63;
}

.zt_dyg_faq_a {
  margin: 0;
  font-size: 17px;
  line-height: 1.95;
  color: #666666;
}

/* WhatsApp 解答按鈕 */
.zt_dyg_faq_btn {
  display: table;
  margin: 46px auto 0;
  padding: 16px 50px;
  border-radius: 10px;
  background: #f2a93b;
  color: #ffffff;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_faq_btn:hover {
  background: #e59a26;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242, 169, 59, .35);
}

/* ==================== 我們的優勢 ==================== */
.zt_dyg_adv {
  padding: 60px 16px 70px;
  background: #f9f9f9;
}

.zt_dyg_adv_title {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: #222222;
  letter-spacing: 2px;
}

.zt_dyg_adv_line {
  display: block;
  width: 46px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: #2f9e63;
}

.zt_dyg_adv_body {
  max-width: 1060px;
  margin: 46px auto 0;
  display: flex;
  align-items: stretch;
  gap: 34px;
}

/* 左側優勢卡片 */
.zt_dyg_adv_list {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}

.zt_dyg_adv_card {
  padding: 24px 26px;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
  text-align: center;
  font-size: 21px;
  font-weight: 700;
  color: #2f9e63;
  letter-spacing: 1px;
  transition: transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_adv_card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(47, 158, 99, .16);
}

/* 右側實景圖 */
.zt_dyg_adv_pics {
  flex: 0 0 400px;
  min-width: 0;
}

/* 桌面端：靜態三圖堆疊 */
.zt_dyg_adv_pics_static {
  display: flex;
  flex-direction: column;
  gap: 18px;
  height: 100%;
}

.zt_dyg_adv_pics_swiper {
  display: none;
}

.zt_dyg_adv_pic {
  width: 100%;
  height: 100%;
  flex: 1 1 0;
  min-height: 0;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
}

/* 移動端 Swiper 容器高度 */
.zt_dyg_adv_pics_swiper .swiper-slide {
  width: 100%;
}

.zt_dyg_adv_pics_swiper .swiper-pagination {
  position: absolute;
  left: 0;
  bottom: 12px;
  width: 100%;
}

.zt_dyg_adv_pics_swiper .swiper-pagination-bullet {
  background: #ffffff;
  opacity: .55;
}

.zt_dyg_adv_pics_swiper .swiper-pagination-bullet-active {
  background: #f2a93b;
  opacity: 1;
}

/* WhatsApp 解答按鈕 */
.zt_dyg_adv_btn {
  display: table;
  margin: 50px auto 0;
  padding: 16px 50px;
  border-radius: 10px;
  background: #f2a93b;
  color: #ffffff;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.zt_dyg_adv_btn:hover {
  background: #e59a26;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242, 169, 59, .35);
}

/* ==================== 按鈕統一樣式（參考 zt_hyc.css：橙黃漸層 + 呼吸光暈 + 光澤掃過） ==================== */
.zt_dyg_method_btn,
.zt_dyg_need_btn,
.zt_dyg_process_btn,
.zt_dyg_faq_btn,
.zt_dyg_adv_btn {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 6px;
  background: linear-gradient(180deg, #f5b04a 0%, #e8932c 100%);
  color: #ffffff;
  font-weight: bold;
  text-align: center;
  box-sizing: border-box;
  cursor: pointer;
  transition: filter .3s ease, transform .3s ease;
  animation: zt_dyg_btn_glow 2.6s ease-in-out infinite;
}

.zt_dyg_method_btn:hover,
.zt_dyg_need_btn:hover,
.zt_dyg_process_btn:hover,
.zt_dyg_faq_btn:hover,
.zt_dyg_adv_btn:hover {
  background: linear-gradient(180deg, #f5b04a 0%, #e8932c 100%);
  filter: brightness(1.06);
  transform: translateY(-2px);
  color: #ffffff;
}

.zt_dyg_method_btn::after,
.zt_dyg_need_btn::after,
.zt_dyg_process_btn::after,
.zt_dyg_faq_btn::after,
.zt_dyg_adv_btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -85%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .45), rgba(255, 255, 255, 0));
  transform: skewX(-18deg);
  pointer-events: none;
  animation: zt_dyg_btn_shine 3.4s ease-in-out infinite;
}

.zt_dyg_method_btn:active,
.zt_dyg_need_btn:active,
.zt_dyg_process_btn:active,
.zt_dyg_faq_btn:active,
.zt_dyg_adv_btn:active {
  transform: translateY(0) scale(.97);
}

@keyframes zt_dyg_btn_glow {
  0%,
  100% {
    box-shadow: 0 6px 14px rgba(224, 143, 39, .28);
  }

  50% {
    box-shadow: 0 9px 26px rgba(224, 143, 39, .55);
  }
}

@keyframes zt_dyg_btn_shine {
  0% {
    left: -85%;
  }

  60%,
  100% {
    left: 120%;
  }
}

@media (prefers-reduced-motion: reduce) {

  .zt_dyg_method_btn,
  .zt_dyg_need_btn,
  .zt_dyg_process_btn,
  .zt_dyg_faq_btn,
  .zt_dyg_adv_btn {
    animation: none;
  }

  .zt_dyg_method_btn::after,
  .zt_dyg_need_btn::after,
  .zt_dyg_process_btn::after,
  .zt_dyg_faq_btn::after,
  .zt_dyg_adv_btn::after {
    display: none;
  }
}

/* 移動端 */
@media (max-width: 768px) {
  .zt_dyg_tags {
    padding: 26px 12px 30px;
  }

  .zt_dyg_tags_list {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .zt_dyg_tag {
    padding: 10px 14px;
    font-size: 15px;
  }

  .zt_dyg_method {
    padding: 42px 14px 50px;
  }

  .zt_dyg_method_title {
    font-size: 23px;
  }

  .zt_dyg_method_desc {
    margin-top: 18px;
    font-size: 15px;
  }

  .zt_dyg_method_table_wrap {
    margin-top: 22px;
  }

  /* 小屏保持三列，可橫向滑動 */
  .zt_dyg_method_table {
    min-width: 640px;
  }

  .zt_dyg_method_table thead th {
    padding: 12px 10px;
    font-size: 15px;
  }

  .zt_dyg_method_table td {
    padding: 14px 12px;
    font-size: 13px;
  }

  .zt_dyg_method_rowhead {
    padding: 12px 8px;
    font-size: 13px;
  }

  .zt_dyg_method_btn {
    margin-top: 30px;
    padding: 13px 40px;
    font-size: 16px;
  }

  .zt_dyg_need {
    padding: 42px 14px 50px;
  }

  .zt_dyg_need_title {
    font-size: 23px;
  }

  .zt_dyg_need_list {
    margin-top: 30px;
  }

  .zt_dyg_need_item {
    gap: 20px;
  }

  .zt_dyg_need_item + .zt_dyg_need_item {
    margin-top: 26px;
  }

  .zt_dyg_need_pic {
    width: 112px;
    height: 112px;
  }

  .zt_dyg_need_name {
    margin-bottom: 8px;
    font-size: 19px;
  }

  .zt_dyg_need_text {
    font-size: 15px;
  }

  .zt_dyg_need_btn {
    margin-top: 32px;
    padding: 13px 44px;
    font-size: 16px;
  }

  .zt_dyg_process {
    padding: 42px 14px 50px;
  }

  .zt_dyg_process_title {
    font-size: 23px;
  }

  .zt_dyg_process_list {
    margin-top: 36px;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 16px;
  }

  .zt_dyg_process_pic {
    height: 150px;
  }

  .zt_dyg_process_name {
    margin: 14px 0 6px;
    font-size: 18px;
  }

  .zt_dyg_process_text {
    font-size: 14px;
  }

  .zt_dyg_process_btn {
    margin-top: 40px;
    padding: 14px 56px;
    font-size: 17px;
    letter-spacing: 4px;
  }

  .zt_dyg_faq {
    padding: 42px 14px 50px;
  }

  .zt_dyg_faq_title {
    font-size: 23px;
  }

  .zt_dyg_faq_list {
    margin-top: 30px;
  }

  .zt_dyg_faq_card {
    padding: 22px 20px;
    border-radius: 12px;
  }

  .zt_dyg_faq_card + .zt_dyg_faq_card {
    margin-top: 18px;
  }

  .zt_dyg_faq_q {
    margin-bottom: 10px;
    font-size: 19px;
  }

  .zt_dyg_faq_a {
    font-size: 16px;
  }

  .zt_dyg_faq_btn {
    margin-top: 32px;
    padding: 14px 34px;
    font-size: 18px;
  }

  .zt_dyg_adv {
    padding: 42px 14px 50px;
  }

  .zt_dyg_adv_title {
    font-size: 23px;
  }

  .zt_dyg_adv_body {
    margin-top: 30px;
    flex-direction: column;
    gap: 24px;
  }

  .zt_dyg_adv_list {
    gap: 12px;
  }

  .zt_dyg_adv_card {
    padding: 16px 18px;
    font-size: 17px;
  }

  /* 移動端：圖片顯示在文字上方 */
  .zt_dyg_adv_pics {
    flex: 0 0 auto;
    order: -1;
  }

  .zt_dyg_adv_pics_static {
    display: none;
  }

  .zt_dyg_adv_pics_swiper {
    display: block;
  }

  .zt_dyg_adv_pics_swiper .zt_dyg_adv_pic {
    height: 200px;
    flex: 0 0 auto;
  }

  .zt_dyg_adv_btn {
    margin-top: 36px;
    padding: 14px 34px;
    font-size: 18px;
  }
}