/* ==========================================================================
   Sub-Page Specific Styles (Option L: Sanctuary Modern Professional)
   ========================================================================== */

/* --- 基礎背景：極致淨白 (Pure Professional Canvas) --- */
.l-sub-layout {
  background-color: var(--color-bg-white) !important; 
  background-image: none !important;
}

.l-sub-layout__main {
  position: relative;
  z-index: 1;
}

/* --- Hero Header --- */
.u-hero-header {
  padding: 2rem 0;
}

.u-hero-header > div {
  max-width: 80rem;
  width: 100%;
  height: auto;
  padding: 0 1rem;
  margin: 0 auto;
}

.u-tag-primary {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 3px;
  margin-bottom: 1rem;
  margin-left: .3rem;
}

.u-hero-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-text-dark);
  margin-bottom: 1.25rem;
  letter-spacing: -0.5px;
}

.u-hero-desc {
  font-size: 1.15rem;
  line-height: 1.9;
  color: var(--color-text-light);
  max-width: 650px;
  text-align: justify;
}

/* --- 側邊選單 --- */
.c-sidebar-trust {
  padding: 0 !important;
}

.c-sidebar-trust__header {
  padding: 1.2rem 1rem;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-accent-peach);
  margin-bottom: 12px;
  cursor: pointer;
}

.c-sidebar-trust__toggle-icon {
  display: block;
  color: var(--color-primary);
  font-size: 1rem;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.c-sidebar-trust.is-open .c-sidebar-trust__toggle-icon {
  transform: rotate(180deg);
}

.c-sidebar-trust__nav {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s ease, opacity 0.3s;
  overflow: hidden;
  opacity: 0;
}

.u-badge-small {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--color-bg-white);
  background: var(--color-primary);
  padding: 2px 8px;
  margin-bottom: 8px;
}

.c-sidebar-trust__title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.c-sidebar-trust__header h3 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-text-dark);
  margin: 0;
}

.c-sidebar-trust__header p {
  font-size: 0.75rem;
  color: var(--color-border-dark);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 4px 0 0 0;
}

.c-sidebar-trust__list {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.c-sidebar-trust__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem;
  background: var(--color-bg-white);
  border: 1px solid var(--color-accent-peach);
  text-decoration: none !important;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.c-sidebar-trust.is-open .c-sidebar-trust__nav {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 10px;
  margin-bottom: 20px;
}

.c-sidebar-trust__content {
  display: flex;
  flex-direction: column;
}

.c-sidebar-trust__text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-dark);
  transition: color 0.3s;
}

.c-sidebar-trust__en {
  font-size: 0.7rem;
  color: var(--color-border-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

.c-sidebar-trust__arrow {
  color: var(--color-border-dark);
  font-size: 0.8rem;
  transition: all 0.3s;
}

.c-sidebar-trust__item:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(117, 72, 43, 0.08);
}

.c-sidebar-trust__item:hover .c-sidebar-trust__text {
  color: var(--color-primary);
}

.c-sidebar-trust__item:hover .c-sidebar-trust__arrow,
.c-sidebar-trust__item.is-active .c-sidebar-trust__arrow{
  color: var(--color-primary);
  transform: translateX(2px);
}

.c-sidebar-trust__item:hover .c-sidebar-trust__arrow i,
.c-sidebar-trust__item.is-active .c-sidebar-trust__arrow i {
  transform: scale(1.3);
  display: inline-block;
  transition: transform 0.3s ease;
}

/* 當前狀態：深度信任標註 */
.c-sidebar-trust__item.is-active {
  background: var(--color-bg-white);
  border: 2px solid var(--color-primary);
  box-shadow: 0 10px 25px rgba(117, 72, 43, 0.1);
  position: relative;
}

.c-sidebar-trust__item.is-active .c-sidebar-trust__text {
  color: var(--color-primary);
}

.c-sidebar-trust__item.is-active::before {
  content: '';
  position: absolute;
  left: -2px;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--color-primary);
}

/* --- 內容區樣式 (Content Areas) --- */
.u-image-full {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  padding: 12px;
  margin-bottom: .5rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.03);
}

.u-image-full:last-child {
  margin-bottom: 0;
}

.u-image-full img {
  display: block;
}

/* 響應式 */
@media (min-width: 992px) {
  .u-hero-header { padding: 0 0 1rem 0; }
  .u-hero-title { font-size: 3rem; }

  /* 側邊選單 RWD 收合 */
  .c-sidebar-trust__toggle-icon {
    display: none;
  }

  .c-sidebar-trust__nav {
    display: block;
    max-height: none;
    opacity: 1;
    overflow: visible;
  }

  .c-sidebar-trust__item {
    padding: .4rem .8rem;
  }

  /* 子選單樣式延伸 (進階美化版) */
  .c-sidebar-trust__sub-list {
    display: none;
    list-style: none;
    padding: 8px 0 0 0;
    flex-direction: column;
    gap: 0; /* 改為無間隙，靠 border 區分 */
    border-left: 2px solid var(--color-accent-peach);
    margin-left: 1.5rem;
  }

  .has-sub.is-expanded .c-sidebar-trust__sub-list {
    display: flex;
  }

  .c-sidebar-trust__sub-item {
    display: flex;
    align-items: center;
    padding: 0.4rem 1rem;
    background: transparent;
    border: none;
    text-decoration: none !important;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-dark);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
  }

  .c-sidebar-trust__sub-item:hover,
  .c-sidebar-trust__sub-item.is-active {
    color: var(--color-secondary);
    padding-left: 1.5rem;
  }

  .c-sidebar-trust__sub-item:hover::before,
  .c-sidebar-trust__sub-item.is-active::before {
    width: 12px;
    background: var(--color-primary);
  }

  .has-sub .c-sidebar-trust__arrow {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  }

  .has-sub.is-expanded > .c-sidebar-trust__item .c-sidebar-trust__arrow {
    transform: rotate(90deg);
  }

}


@media (max-width: 991px) {
    /* 行動版子選單微調 */
    .c-sidebar-trust__sub-list {
        display: none;
        list-style: none;
        padding: 0 0 0 1rem;
        margin: 8px 0 0 1.2rem;
        flex-direction: column;
        border-left: 2px solid var(--color-accent-peach);
    }
    .has-sub.is-expanded .c-sidebar-trust__sub-list {
        display: flex;
    }
    .c-sidebar-trust__sub-item {
        font-size: 1.2rem;
        line-height: 3rem;
    }
}

@media (min-width: 1440px) {
  .u-hero-header > div {padding: 0;}
}