/* ==========================================================================
   明健 MING JIAN - 企業大宗採購與節慶送禮專屬樣式表 (B2B & CORPORATE GIFTING)
   繼承 base.css 與 components.css，本檔案包含 B2B 分頁專屬版面、卡片與表單互動
   遵循 ZENB 極簡日系美學、零 Emoji 原則、18px 手機容器邊距與無橫向溢出
   ========================================================================== */

/* --- 1. B2B 麵包屑導航 (BREADCRUMB) --- */
.b2b-breadcrumb-wrap {
  background-color: #F8FAF8;
  border-bottom: 1px solid #EBEFEA;
  padding: 12px 0;
}

.b2b-breadcrumb {
  font-size: 0.85rem;
  color: #6D7A73;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.b2b-breadcrumb a {
  color: var(--color-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.b2b-breadcrumb a:hover {
  color: var(--color-primary-light);
}

.b2b-breadcrumb-separator {
  opacity: 0.5;
}

.b2b-breadcrumb-current {
  color: #2D3A33;
  font-weight: 600;
}

/* --- 2. B2B 主視覺 HERO (HERO SECTION) --- */
.b2b-hero {
  background: linear-gradient(180deg, #F5F8F6 0%, #FFFFFF 100%);
  padding: 56px 0 48px;
  border-bottom: 1px solid #EBEFEA;
  position: relative;
  overflow: hidden;
}

.b2b-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.b2b-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  background-color: rgba(0, 71, 39, 0.08);
  border: 1px solid rgba(0, 71, 39, 0.15);
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 16px;
  text-transform: uppercase;
  white-space: nowrap;
}

.b2b-hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.35;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.b2b-hero-desc {
  font-size: 1.05rem;
  color: #4A5650;
  line-height: 1.85;
  margin-bottom: 28px;
}

/* 核心優勢小膠囊 (Hero Key Highlights) */
.b2b-hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.b2b-highlight-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  background: #FFFFFF;
  border: 1px solid #D8E2DC;
  padding: 8px 16px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 71, 39, 0.04);
}

.b2b-highlight-pill svg {
  color: #2F8052;
  flex-shrink: 0;
}

/* 快捷動作按鈕組 (Hero Action Buttons) */
.b2b-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn-b2b-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0, 71, 39, 0.2);
}

.btn-b2b-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 71, 39, 0.28);
}

.btn-b2b-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #06C755;
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 8px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.2);
}

.btn-b2b-line:hover {
  background-color: #05b34c;
  transform: translateY(-1px);
}

.btn-b2b-tel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #FFFFFF;
  color: var(--color-text-main);
  border: 1px solid #D8E2DC;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 20px;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.btn-b2b-tel:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Hero 右側禮盒圖卡 (Hero Showcase Card) */
.b2b-hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.b2b-hero-img-box {
  background: #FFFFFF;
  border: 1px solid #E2E8E4;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 8px 30px rgba(0, 71, 39, 0.08);
  width: 100%;
  max-width: 460px;
  text-align: center;
  position: relative;
}

.b2b-hero-img-box img {
  width: 100%;
  max-height: 290px;
  object-fit: contain;
  margin: 0 auto;
  transition: transform var(--transition-normal);
}

.b2b-hero-img-box:hover img {
  transform: scale(1.02);
}

.b2b-hero-img-caption {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed #E2E8E4;
}

.b2b-hero-caption-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.b2b-hero-caption-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- 3. 企業需求單與專案諮詢 (INQUIRY SECTION & SECTION HEADER) --- */
.b2b-section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 48px;
}

.b2b-section-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.b2b-section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.35;
  margin-bottom: 14px;
}

.b2b-section-desc {
  font-size: 1.02rem;
  color: #55625A;
  line-height: 1.85;
}

/* --- 4. 需求表單與急件專區 (FORM & URGENT CONTACT SECTION) --- */
.b2b-inquiry-section {
  padding: 64px 0 96px;
  background: linear-gradient(180deg, #F8FAF8 0%, #FFFFFF 100%);
  border-top: 1px solid #EBEFEA;
}

.b2b-inquiry-grid {
  display: grid;
  grid-template-columns: 1.55fr 0.95fr;
  gap: 40px;
  align-items: start;
}

/* 表單卡片 (Form Card) */
.b2b-form-card {
  background: #FFFFFF;
  border: 1px solid #E2E8E4;
  border-radius: 18px;
  padding: 40px;
  box-shadow: 0 8px 32px rgba(0, 71, 39, 0.05);
}

.b2b-form-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid #EBEFEA;
}

.b2b-form-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.b2b-form-intro {
  font-size: 0.95rem;
  color: #5A6660;
  line-height: 1.75;
}

.b2b-form-group {
  margin-bottom: 22px;
}

.b2b-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.b2b-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: #2D3A33;
  margin-bottom: 8px;
}

.b2b-label .required-badge {
  color: #CC3044;
  margin-left: 4px;
  font-size: 0.85rem;
}

.b2b-label .optional-badge {
  color: #7B8881;
  font-size: 0.82rem;
  font-weight: 400;
  margin-left: 6px;
}

.b2b-input,
.b2b-select,
.b2b-textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text-main);
  background: #FDFEFC;
  border: 1px solid #CCD6D0;
  border-radius: 8px;
  transition: all var(--transition-fast);
  outline: none;
}

.b2b-input:focus,
.b2b-select:focus,
.b2b-textarea:focus {
  border-color: var(--color-primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(0, 71, 39, 0.12);
}

.b2b-input::placeholder,
.b2b-textarea::placeholder {
  color: #9DA8A2;
}

.b2b-textarea {
  resize: vertical;
  min-height: 110px;
}

/* 採購盒數單選群組 (Radio Pills Group) */
.b2b-radio-group {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.b2b-radio-pill {
  position: relative;
  display: block;
  cursor: pointer;
}

.b2b-radio-pill input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.b2b-radio-pill-box {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 10px;
  text-align: center;
  background: #F9FAF9;
  border: 1px solid #CCD6D0;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #3C4A42;
  transition: all var(--transition-fast);
}

.b2b-radio-pill input[type="radio"]:checked + .b2b-radio-pill-box {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 10px rgba(0, 71, 39, 0.18);
}

.b2b-radio-pill:hover .b2b-radio-pill-box {
  border-color: var(--color-primary);
}

/* 樣品試吃需求勾選框 (Sample Checkbox) */
.b2b-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  background: #F8FAF8;
  border: 1px solid #D6E0DA;
  padding: 16px 18px;
  border-radius: 10px;
  transition: all var(--transition-fast);
}

.b2b-checkbox-label:hover {
  border-color: var(--color-primary);
  background: #F4F8F5;
}

.b2b-checkbox-input {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  margin-top: 2px;
  cursor: pointer;
  flex-shrink: 0;
}

.b2b-checkbox-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: #2D3A33;
  line-height: 1.5;
}

.b2b-checkbox-sub {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: #64726B;
  margin-top: 3px;
}

/* 送出需求按鈕 */
.btn-b2b-submit {
  width: 100%;
  padding: 16px 24px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 71, 39, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}

.btn-b2b-submit:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 22px rgba(0, 71, 39, 0.3);
  transform: translateY(-1px);
}

/* 急件專屬聯絡卡 (Urgent Contact Card) */
.b2b-urgent-card {
  background: #FFFFFF;
  border: 1px solid #E2E8E4;
  border-radius: 18px;
  padding: 36px 30px;
  box-shadow: 0 8px 32px rgba(0, 71, 39, 0.05);
  position: sticky;
  top: 96px;
}

.b2b-urgent-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.b2b-urgent-intro {
  font-size: 0.92rem;
  color: #5D6862;
  line-height: 1.7;
  margin-bottom: 24px;
}

.b2b-contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.b2b-contact-item {
  background: #F9FAF9;
  border: 1px solid #E6ECE8;
  border-radius: 12px;
  padding: 16px 18px;
  transition: all var(--transition-fast);
}

.b2b-contact-item:hover {
  border-color: #C5DED2;
  background: #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 71, 39, 0.05);
}

.b2b-contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #6C7A73;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.b2b-contact-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
}

.b2b-contact-value a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.b2b-contact-sub {
  font-size: 0.82rem;
  color: #7A8780;
  margin-top: 4px;
}

.btn-b2b-line-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  background: #06C755;
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition-fast);
  margin-top: 8px;
}

.btn-b2b-line-card:hover {
  background: #05b34c;
}

/* 安心保障承諾清單 */
.b2b-commitments {
  border-top: 1px dashed #E2E8E4;
  padding-top: 20px;
}

.b2b-commitment-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: #48544E;
  margin-bottom: 10px;
}

.b2b-commitment-item:last-child {
  margin-bottom: 0;
}

.b2b-commitment-item svg {
  color: #2F8052;
  flex-shrink: 0;
}

/* --- 7. 表單成功互動反饋彈窗 (SUBMISSION SUCCESS MODAL) --- */
.b2b-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.b2b-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.b2b-modal-card {
  background: #FFFFFF;
  border-radius: 20px;
  max-width: 540px;
  width: 100%;
  padding: 36px 32px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
  text-align: center;
  transform: translateY(20px) scale(0.97);
  transition: all var(--transition-normal);
}

.b2b-modal-overlay.active .b2b-modal-card {
  transform: translateY(0) scale(1);
}

.b2b-modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 71, 39, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.b2b-modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.b2b-modal-desc {
  font-size: 0.95rem;
  color: #4C5952;
  line-height: 1.8;
  margin-bottom: 24px;
}

.b2b-modal-summary {
  background: #F8FAF8;
  border: 1px solid #E2E8E4;
  border-radius: 12px;
  padding: 18px 20px;
  text-align: left;
  margin-bottom: 26px;
  font-size: 0.9rem;
  color: #3C4841;
}

.b2b-modal-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.b2b-modal-summary-row:last-child {
  margin-bottom: 0;
}

.b2b-modal-summary-label {
  color: #6C7A73;
}

.b2b-modal-summary-value {
  font-weight: 600;
  color: var(--color-primary);
}

.btn-b2b-modal-close {
  display: inline-block;
  width: 100%;
  padding: 14px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-b2b-modal-close:hover {
  background: var(--color-primary-dark);
}

/* ==========================================================================
   8. 響應式佈局適配 (RESPONSIVE BREAKPOINTS - 393px, 768px, 1024px)
   ========================================================================== */
@media (max-width: 1024px) {
  .b2b-hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .b2b-hero-visual {
    order: -1;
  }

  .b2b-hero-img-box {
    max-width: 480px;
  }

  .b2b-inquiry-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .b2b-urgent-card {
    position: static;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }

  .b2b-hero {
    padding: 36px 0 32px;
  }

  .b2b-hero-tag {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    padding: 5px 12px;
  }

  .b2b-hero-title {
    font-size: 1.75rem;
    line-height: 1.35;
  }

  .b2b-hero-desc {
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 20px;
  }

  .b2b-hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .btn-b2b-primary,
  .btn-b2b-line,
  .btn-b2b-tel {
    width: 100%;
    justify-content: center;
  }

  .b2b-section-title {
    font-size: 1.6rem;
  }

  .b2b-inquiry-section {
    padding: 48px 0 64px;
  }

  .b2b-form-card {
    padding: 24px 18px;
    border-radius: 14px;
  }

  .b2b-form-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .b2b-radio-group {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .b2b-urgent-card {
    padding: 24px 18px;
    border-radius: 14px;
  }

  .b2b-modal-card {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .b2b-hero-tag {
    font-size: 0.72rem;
    letter-spacing: 1px;
    padding: 4px 10px;
  }

  .b2b-hero-title {
    font-size: 1.55rem;
  }

  .b2b-highlight-pill {
    width: 100%;
    justify-content: flex-start;
  }

  .b2b-radio-group {
    grid-template-columns: 1fr 1fr;
  }

  .b2b-radio-pill-box {
    padding: 10px 6px;
    font-size: 0.88rem;
  }
}