.page-doi-tac {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F3F8FF; /* Text Main */
  background-color: var(--deep-navy-color); /* Body background from shared */
}

.page-doi-tac__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-doi-tac__top-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  text-align: center;
  background: linear-gradient(180deg, #113B7A 0%, #08162B 100%);
}

.page-doi-tac__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  font-weight: bold;
  color: #F2C14E; /* Gold */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-doi-tac__intro-text {
  font-size: 1.2em;
  color: #AFC4E8; /* Text Secondary */
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.page-doi-tac__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-doi-tac__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-doi-tac__btn--primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-doi-tac__btn--primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__btn--secondary {
  background: #10233F; /* Card BG */
  color: #F3F8FF; /* Text Main */
  border: 2px solid #244D84; /* Border */
}

.page-doi-tac__btn--secondary:hover {
  background: #244D84; /* Border */
  color: #F2C14E; /* Gold */
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__section {
  padding: 80px 0;
  border-bottom: 1px solid #1B3357; /* Divider */
}

.page-doi-tac__section:last-of-type {
  border-bottom: none;
}

.page-doi-tac__section-title {
  font-size: 2.5em;
  color: #F2C14E; /* Gold */
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
}

.page-doi-tac__text-block {
  font-size: 1.1em;
  color: #AFC4E8; /* Text Secondary */
  margin-bottom: 30px;
  text-align: justify;
}

.page-doi-tac__figure {
  margin: 40px auto;
  text-align: center;
  max-width: 100%;
  overflow: hidden;
}

.page-doi-tac__image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-doi-tac__figcaption {
  font-size: 0.9em;
  color: #AFC4E8; /* Text Secondary */
  margin-top: 15px;
  font-style: italic;
}

.page-doi-tac__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-doi-tac__benefit-card {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-doi-tac__benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__card-title {
  font-size: 1.5em;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  font-weight: bold;
}

.page-doi-tac__card-text {
  font-size: 1em;
  color: #AFC4E8; /* Text Secondary */
  line-height: 1.5;
}

.page-doi-tac__list {
  list-style: none;
  padding: 0;
  margin: 40px auto;
  max-width: 800px;
}

.page-doi-tac__list-item {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  font-size: 1.1em;
  color: #F3F8FF; /* Text Main */
  display: flex;
  align-items: flex-start;
  gap: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-doi-tac__list-item::before {
  content: '✔️';
  color: #F2C14E; /* Gold */
  font-size: 1.2em;
  line-height: 1;
  flex-shrink: 0;
}

.page-doi-tac__process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-doi-tac__step-card {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}

.page-doi-tac__step-number {
  position: absolute;
  top: -15px;
  left: -15px;
  background-color: #F2C14E; /* Gold */
  color: #113B7A;
  font-size: 2.5em;
  font-weight: bold;
  border-radius: 50%;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-15deg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__step-card .page-doi-tac__card-title {
  margin-top: 50px;
}

.page-doi-tac__center-cta {
  text-align: center;
  margin-top: 50px;
}

.page-doi-tac__faq-list {
  margin-top: 40px;
}

.page-doi-tac__faq-item {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84; /* Border */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-doi-tac__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  color: #F3F8FF; /* Text Main */
  cursor: pointer;
  list-style: none;
  user-select: none; /* Prevent text selection on click */
  position: relative;
}

.page-doi-tac__faq-question::-webkit-details-marker, /* Hide default marker for Chrome */
.page-doi-tac__faq-question::marker { /* Hide default marker for Firefox */
  display: none;
}

.page-doi-tac__faq-item[open] .page-doi-tac__faq-toggle {
  transform: rotate(45deg);
}

.page-doi-tac__faq-answer {
  padding: 0 25px 20px;
  font-size: 1.05em;
  color: #AFC4E8; /* Text Secondary */
  line-height: 1.6;
}

.page-doi-tac__faq-answer p {
  margin-bottom: 0;
}

.page-doi-tac__section--contact-cta {
  text-align: center;
  padding-bottom: 80px;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-doi-tac__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }

  .page-doi-tac__section-title {
    font-size: 2em;
  }

  .page-doi-tac__benefits-grid,
  .page-doi-tac__process-steps {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .page-doi-tac__cta-buttons {
    gap: 15px;
  }
}

@media (max-width: 768px) {
  .page-doi-tac__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 1. 顶区标题 + 双 CTA */
  .page-doi-tac__top-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 40px;
  }

  .page-doi-tac__main-title {
    font-size: 2em !important;
    margin-bottom: 15px;
  }

  .page-doi-tac__intro-text {
    font-size: 1em !important;
    margin-bottom: 25px;
  }

  .page-doi-tac__cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px !important;
  }

  .page-doi-tac__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  /* 2. 单栏长文容器 */
  .page-doi-tac__section {
    padding: 40px 0 !important;
  }

  .page-doi-tac__section-title {
    font-size: 1.8em !important;
    margin-bottom: 30px;
  }

  .page-doi-tac__text-block {
    font-size: 1em !important;
    margin-bottom: 20px;
  }

  /* 3. 通用图片与 figure */
  .page-doi-tac__figure {
    margin: 20px auto !important;
  }

  .page-doi-tac__image {
    max-width: 100% !important;
    height: auto !important;
    width: 100% !important;
  }

  .page-doi-tac__figcaption {
    font-size: 0.8em !important;
    margin-top: 10px;
  }

  .page-doi-tac__benefits-grid,
  .page-doi-tac__process-steps {
    grid-template-columns: 1fr !important; /* Single column layout */
    gap: 20px !important;
  }

  .page-doi-tac__benefit-card,
  .page-doi-tac__step-card {
    padding: 25px !important;
  }

  .page-doi-tac__card-title {
    font-size: 1.3em !important;
  }

  .page-doi-tac__card-text {
    font-size: 0.95em !important;
  }

  .page-doi-tac__list {
    margin: 20px auto !important;
  }

  .page-doi-tac__list-item {
    padding: 15px !important;
    font-size: 1em !important;
    gap: 10px;
  }

  .page-doi-tac__list-item::before {
    font-size: 1.1em !important;
  }

  .page-doi-tac__step-number {
    font-size: 2em !important;
    width: 60px !important;
    height: 60px !important;
    top: -10px;
    left: -10px;
  }

  .page-doi-tac__step-card .page-doi-tac__card-title {
    margin-top: 40px;
  }

  .page-doi-tac__center-cta {
    margin-top: 30px;
  }

  /* 4. 按钮与按钮容器 - Already covered in .page-doi-tac__cta-buttons and .page-doi-tac__btn */

  /* 5. FAQ 区块 */
  .page-doi-tac__faq-question {
    padding: 15px 20px !important;
    font-size: 1.1em !important;
  }

  .page-doi-tac__faq-toggle {
    font-size: 1.3em !important;
  }

  .page-doi-tac__faq-answer {
    padding: 0 20px 15px !important;
    font-size: 0.95em !important;
  }

  .page-doi-tac__section--contact-cta {
    padding-bottom: 40px;
  }
}