/* ==========================================
   天津惠诚商务信息咨询有限公司 - 端庄稳重权威风格 CSS
   设计基调：深沉藏青(#0E2240) + 权威朱红(#B81C1C) + 典雅古金(#B88E4C)
   ========================================== */

:root {
  --primary-navy: #0E2240;
  --primary-dark: #0A172C;
  --accent-red: #B81C1C;
  --accent-red-hover: #D32F2F;
  --accent-gold: #B88E4C;
  --accent-gold-light: #D4AF37;
  
  --bg-light: #F4F7FA;
  --bg-white: #FFFFFF;
  --bg-dark-section: #0B1528;
  --bg-card-dark: #13233D;

  --text-primary: #1F2937;
  --text-secondary: #4B5563;
  --text-muted: #6B7280;
  --text-white: #FFFFFF;

  --border-color: #E2E8F0;
  --border-gold: #D4AF37;
  --border-dark: #1E3A8A;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(14, 34, 64, 0.08);
  --shadow-lg: 0 16px 36px rgba(14, 34, 64, 0.12);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-light);
  color: var(--text-primary);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 70px 0;
}

.section-dark {
  background-color: var(--bg-dark-section);
  color: var(--text-white);
}

.section-white {
  background-color: var(--bg-white);
}

/* 统一标题 */
.section-title-box {
  text-align: center;
  margin-bottom: 50px;
}

.section-subtitle {
  color: var(--accent-red);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.section-dark .section-subtitle {
  color: var(--accent-gold);
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--primary-navy);
  letter-spacing: -0.5px;
}

.section-dark .section-title {
  color: var(--text-white);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 10px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-dark .section-desc {
  color: #A0AEC0;
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-red {
  background-color: var(--accent-red);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(184, 28, 28, 0.25);
}

.btn-red:hover {
  background-color: var(--accent-red-hover);
  transform: translateY(-1px);
}

.btn-navy {
  background-color: var(--primary-navy);
  color: #ffffff;
}

.btn-navy:hover {
  background-color: #1A365D;
}

.btn-gold {
  background: linear-gradient(135deg, #C59B56, #A27B38);
  color: #ffffff;
}

.btn-gold:hover {
  background: linear-gradient(135deg, #D4AF37, #B88E4C);
}

/* ------------------------------------------
   顶部顶部状态条与 Header
   ------------------------------------------ */
.top-notice-bar {
  background-color: var(--primary-dark);
  color: #E2E8F0;
  font-size: 0.8rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-notice-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-notice-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-notice-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-main {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 2px solid var(--accent-red);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 85px;
}

.company-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-seal-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-navy);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-gold);
}

.brand-seal-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--accent-gold);
}

.brand-name-zh {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-navy);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.brand-name-en {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  font-weight: 600;
}

.main-nav {
  display: flex;
  gap: 28px;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 8px 0;
  position: relative;
}

.main-nav a:hover {
  color: var(--accent-red);
}

.header-phone-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFF5F5;
  border: 1px solid #FECDD3;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
}

.phone-icon-circle {
  width: 36px;
  height: 36px;
  background: var(--accent-red);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-num-text {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--accent-red);
  font-family: Arial, sans-serif;
}

/* ------------------------------------------
   Hero 区域 (稳重政企实操风)
   ------------------------------------------ */
.hero-section {
  background: linear-gradient(135deg, #0A172C 0%, #0F2444 100%);
  color: var(--text-white);
  padding: 60px 0 80px;
  position: relative;
  border-bottom: 3px solid var(--accent-gold);
}

.hero-grid-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-main-title {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-main-title span {
  color: var(--accent-gold-light);
  border-bottom: 3px solid var(--accent-red);
  padding-bottom: 4px;
}

.hero-sub-statement {
  font-size: 1.05rem;
  color: #CBD5E0;
  line-height: 1.7;
  margin-bottom: 30px;
  border-left: 3px solid var(--accent-gold);
  padding-left: 14px;
}

.hero-promises-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 35px;
}

.promise-box {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
}

.promise-box-icon {
  color: var(--accent-gold);
  font-size: 1.2rem;
}

.promise-box-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #FFFFFF;
}

.promise-box-desc {
  font-size: 0.75rem;
  color: #A0AEC0;
}

.hero-cta-btns {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 实体靠谱表单 (Solid Form) */
.hero-form-wrapper {
  background: var(--bg-white);
  border: 2px solid var(--primary-navy);
  border-top: 4px solid var(--accent-red);
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  color: var(--text-primary);
  padding: 30px;
  position: relative;
}

.form-title-bar {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.form-title-bar h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.form-title-bar p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.solid-field-group {
  margin-bottom: 16px;
}

.solid-field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.solid-input, .solid-select, .solid-textarea {
  width: 100%;
  background: #F8FAFC;
  border: 1px solid #CBD5E1;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.solid-input:focus, .solid-select:focus, .solid-textarea:focus {
  border-color: var(--primary-navy);
  background: #FFFFFF;
}

.legal-notice-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.legal-notice-check input {
  margin-top: 3px;
}

.btn-form-submit {
  width: 100%;
  padding: 14px;
  font-size: 1.05rem;
}

/* ------------------------------------------
   实体保密与正规机构对比表格
   ------------------------------------------ */
.compare-table-wrapper {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-top: 30px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.compare-table th {
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 800;
}

.compare-table th.col-feature {
  background: #EDF2F7;
  color: var(--text-primary);
  width: 25%;
}

.compare-table th.col-hc {
  background: var(--primary-navy);
  color: var(--accent-gold-light);
  width: 40%;
  font-size: 1.1rem;
}

.compare-table th.col-other {
  background: #718096;
  color: #FFFFFF;
  width: 35%;
}

.compare-table td {
  padding: 16px 24px;
  border-bottom: 1px solid #EDF2F7;
  font-size: 0.9rem;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .check-yes {
  color: #22C55E;
  font-weight: 700;
}

.compare-table .check-no {
  color: #EF4444;
  font-weight: 700;
}

/* ------------------------------------------
   服务范围 Section (实体名片风格)
   ------------------------------------------ */
.services-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.service-card-item:hover {
  border-color: var(--primary-navy);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.service-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 2px solid #F1F5F9;
}

.service-card-icon {
  width: 44px;
  height: 44px;
  background: #EFF6FF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-navy);
  flex-shrink: 0;
}

.service-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.service-card-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
  flex-grow: 1;
}

.service-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.service-tag-chip {
  background: #F1F5F9;
  color: var(--text-secondary);
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 2px;
  font-weight: 600;
}

.service-card-footer {
  margin-top: auto;
}

/* ------------------------------------------
   保密承诺与公章证书风格 (Seal Banner)
   ------------------------------------------ */
.seal-certificate-box {
  background: #FFFDF9;
  border: 2px solid var(--accent-gold);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-top: 40px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  box-shadow: var(--shadow-md);
}

.seal-cert-left h4 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-navy);
  margin-bottom: 10px;
}

.seal-cert-left p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 仿正规红色盖章 */
.chinese-red-seal {
  width: 110px;
  height: 110px;
  border: 3px solid var(--accent-red);
  border-radius: 50%;
  color: var(--accent-red);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: 900;
  font-size: 0.72rem;
  padding: 6px;
  transform: rotate(-12deg);
  opacity: 0.9;
  flex-shrink: 0;
  user-select: none;
  box-shadow: 0 0 4px rgba(184, 28, 28, 0.2);
}

.chinese-red-seal .star {
  font-size: 1rem;
  line-height: 1;
  margin: 2px 0;
}

/* ------------------------------------------
   服务流程 (4步实地流程)
   ------------------------------------------ */
.process-four-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card-sol {
  background: var(--bg-card-dark);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 24px;
  position: relative;
}

.step-num-badge {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent-gold);
  font-family: Georgia, serif;
  margin-bottom: 12px;
}

.step-card-sol h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.step-card-sol p {
  font-size: 0.85rem;
  color: #A0AEC0;
  line-height: 1.6;
}

/* ------------------------------------------
   FAQ 手风琴折叠
   ------------------------------------------ */
.faq-box-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.faq-row {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.faq-head {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-head:hover {
  color: var(--accent-red);
}

.faq-body {
  padding: 0 24px 18px 24px;
  display: none;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px dashed var(--border-color);
  padding-top: 14px;
}

.faq-row.active .faq-body {
  display: block;
}

/* ------------------------------------------
   页脚 (Footer)
   ------------------------------------------ */
.footer-main {
  background: var(--primary-dark);
  color: #A0AEC0;
  padding: 50px 0 24px;
  font-size: 0.85rem;
  border-top: 3px solid var(--primary-navy);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a:hover {
  color: var(--accent-gold);
}

.footer-disclaimer-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  text-align: center;
  font-size: 0.78rem;
  color: #718096;
}

/* ------------------------------------------
   悬浮与 Modal
   ------------------------------------------ */
.fixed-floating-contact {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 999;
}

.float-form-btn {
  width: 56px;
  height: 56px;
  background: var(--primary-navy);
  color: var(--accent-gold-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(14, 34, 64, 0.4);
  cursor: pointer;
  border: 2px solid var(--accent-gold);
  transition: all 0.25s ease;
}

.float-call-btn {
  width: 56px;
  height: 56px;
  background: var(--accent-red);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(184, 28, 28, 0.4);
  cursor: pointer;
  border: 2px solid #FFFFFF;
  transition: all 0.25s ease;
}

.float-top-btn {
  width: 56px;
  height: 56px;
  background: var(--primary-navy);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  border: 2px solid #FFFFFF;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.float-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.float-top-btn:hover {
  background: var(--accent-red);
  border-color: #FFFFFF;
  transform: scale(1.08);
}

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-dialog {
  background: var(--bg-white);
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-sm);
  padding: 30px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.modal-close-x {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 1.4rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
}

/* 移动端排版精准适配 (max-width: 992px & max-width: 768px) */
@media (max-width: 992px) {
  .hero-grid-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .services-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-four-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* 1. 顶部公告条 */
  .top-notice-bar {
    font-size: 0.72rem;
    padding: 6px 0;
  }
  .top-notice-container {
    flex-direction: column;
    gap: 2px;
    text-align: center;
  }
  .top-notice-left {
    flex-direction: column;
    gap: 2px;
  }
  .top-notice-right {
    display: none;
  }

  /* 2. Header 导航头 */
  .header-main {
    border-bottom: 2px solid var(--accent-red);
  }
  .header-container {
    height: 60px;
    padding: 0 12px;
  }
  .company-brand {
    gap: 8px;
  }
  .brand-seal-icon {
    width: 34px;
    height: 34px;
  }
  .brand-seal-icon svg {
    width: 18px;
    height: 18px;
  }
  .brand-name-zh {
    font-size: 0.95rem;
    letter-spacing: 0;
  }
  .brand-name-en {
    display: none;
  }
  .main-nav {
    display: none;
  }
  .header-phone-box {
    padding: 4px 10px;
    gap: 6px;
  }
  .header-phone-box div div {
    display: none;
  }
  .phone-num-text {
    font-size: 0.9rem;
  }
  .phone-icon-circle {
    width: 26px;
    height: 26px;
  }

  /* 3. Hero 区域排版 */
  .hero-section {
    padding: 24px 0 36px;
  }
  .hero-main-title {
    font-size: 1.55rem;
    line-height: 1.3;
    margin-bottom: 12px;
  }
  .hero-sub-statement {
    font-size: 0.85rem;
    margin-bottom: 20px;
    line-height: 1.6;
    padding-left: 10px;
  }
  .hero-promises-grid {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-bottom: 20px;
  }
  .promise-box {
    padding: 10px 12px;
  }
  .promise-box-title {
    font-size: 0.85rem;
  }
  .promise-box-desc {
    font-size: 0.72rem;
  }

  .hero-cta-btns {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  .hero-cta-btns .btn {
    width: 100%;
    padding: 12px;
    font-size: 0.95rem;
  }

  /* 4. 留资表单卡片 */
  .hero-form-wrapper {
    padding: 20px 16px;
    margin-top: 10px;
  }
  .form-title-bar h3 {
    font-size: 1.15rem;
  }
  .solid-field-group {
    margin-bottom: 12px;
  }
  .solid-input, .solid-select, .solid-textarea {
    padding: 9px 12px;
    font-size: 0.85rem;
  }

  /* 5. 模块标题与间距 */
  .section {
    padding: 40px 0;
  }
  .section-title-box {
    margin-bottom: 30px;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .section-desc {
    font-size: 0.88rem;
  }

  /* 6. 对比表格横向滚动 */
  .compare-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .compare-table th, .compare-table td {
    padding: 10px 12px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  /* 7. 服务卡片与流程 */
  .services-card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .process-four-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* 8. 盖章 Banner */
  .seal-certificate-box {
    flex-direction: column;
    text-align: center;
    padding: 24px 16px;
    gap: 20px;
  }
  .seal-cert-left h4 {
    font-size: 1.15rem;
  }
  .seal-cert-left p {
    font-size: 0.85rem;
  }

  /* 9. 页脚 */
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* 10. 移动端悬浮按键适中缩小，避免遮挡表单 */
  .fixed-floating-contact {
    bottom: 16px;
    right: 12px;
    gap: 8px;
  }
  .float-form-btn, .float-call-btn, .float-top-btn {
    width: 44px;
    height: 44px;
  }
  .float-form-btn svg, .float-call-btn svg, .float-top-btn svg {
    width: 20px;
    height: 20px;
  }
}