/* ==========================================================================
   日照云生网络技术有限公司 - 五莲县网站建设官方落地页 (经典高端沉稳商务蓝版)
   视觉设计: 经典商务蓝、沉稳大气、护眼舒适、无刺眼高饱和色 (Classic Business Ocean Blue)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS 变量与设计规范 (Design Tokens - 沉稳商务蓝)
   -------------------------------------------------------------------------- */
:root {
  /* 品牌核心色彩 - 经典沉稳商务蓝，舒适耐看不晃眼 */
  --primary-color: #0f4c81;        /* 主色：经典经典商务蓝 */
  --primary-hover: #0c3b66;        /* 主色悬停 */
  --accent-blue: #1d6fa5;          /* 沉稳高亮蓝 */
  --sky-blue: #3897d3;             /* 柔和天蓝 */
  --light-blue-bg: #edf4fa;        /* 雅致浅蓝背景 */
  --dark-navy: #0b1d30;            /* 沉静海蓝（页脚与夜色背景） */
  --dark-blue-section: linear-gradient(135deg, #0e2f50 0%, #13426e 60%, #18548c 100%); /* 沉静商务海蓝 */
  --bg-soft-gray: #f4f7fb;         /* 柔和淡雅背景 */
  --border-color: #e2e8f0;         /* 细线边框 */
  
  /* 渐变色彩 - 柔和沉稳 */
  --gradient-blue-primary: linear-gradient(135deg, #0f4c81 0%, #1d6fa5 100%);
  --gradient-hero: linear-gradient(135deg, #0b1d30 0%, #0f365d 60%, #164e80 100%); /* 经典大气深海蓝 */
  
  /* 中性色系 */
  --text-main: #1e293b;            /* 舒适深灰文本 */
  --text-muted: #475569;           /* 次要文本 */
  --text-light: #94a3b8;           /* 辅助文本 */
  --bg-main: #ffffff;              /* 纯白背景 */
  
  /* 阴影规范 - 质感沉稳 */
  --shadow-sm: 0 4px 12px rgba(15, 76, 129, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 76, 129, 0.09);
  --shadow-lg: 0 16px 40px rgba(11, 29, 48, 0.12);
  --shadow-hover: 0 12px 30px rgba(15, 76, 129, 0.18);
  
  /* 布局与尺寸 */
  --container-max-width: 1240px;
  --header-height: 80px;
  --topbar-height: 42px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --transition-fast: all 0.25s ease-in-out;
  --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. 基础重置与 Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

.ys-phone-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.ys-phone-link:hover {
  opacity: 0.88;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

ul, ol {
  list-style: none;
}

.ys-wrapper {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* --------------------------------------------------------------------------
   3. 全局模块分层背景与标题样式
   -------------------------------------------------------------------------- */
.ys-zone-padding {
  padding: 95px 0;
}

.ys-backdrop-snow {
  background-color: #ffffff;
}

.ys-backdrop-mild {
  background: var(--bg-soft-gray);
  border-bottom: 1px solid var(--border-color);
}

.ys-backdrop-night {
  background: var(--dark-blue-section);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.ys-zone-masthead {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px auto;
}

.ys-zone-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 5px 16px;
  background: var(--light-blue-bg);
  border-radius: 30px;
  border: 1px solid rgba(15, 76, 129, 0.2);
}

.ys-backdrop-night .ys-zone-subtitle {
  background: rgba(255, 255, 255, 0.15);
  color: #93c5fd;
  border-color: rgba(255, 255, 255, 0.3);
}

.ys-zone-heading {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.ys-backdrop-night .ys-zone-heading {
  color: #ffffff;
}

.ys-zone-summary {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.ys-backdrop-night .ys-zone-summary {
  color: #cbd5e1;
}

/* 按钮规范 - 沉稳商务蓝 */
.ys-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 34px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.ys-action-main {
  background: var(--primary-color);
  color: #ffffff;
  border: none;
  box-shadow: 0 6px 18px rgba(15, 76, 129, 0.25);
}

.ys-action-main:hover {
  background: var(--accent-blue);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 76, 129, 0.35);
}

.ys-action-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(10px);
}

.ys-action-ghost:hover {
  background: #ffffff;
  color: var(--primary-color);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.ys-action-symbol {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.ys-svg-symbol {
  display: inline-block;
  width: 1em;
  height: 1em;
  stroke-width: 0;
  stroke: currentColor;
  fill: currentColor;
  vertical-align: middle;
}

/* --------------------------------------------------------------------------
   4. 顶部信息栏 (Top Bar - 沉稳深蓝)
   -------------------------------------------------------------------------- */
.ys-ceiling {
  background-color: var(--dark-navy);
  color: #cbd5e1;
  font-size: 0.85rem;
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.ys-ceiling-content {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  line-height: 1.4;
}

.ys-ceiling-detail {
  display: flex;
  align-items: center;
  gap: 24px;
}

.ys-ceiling-piece {
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1;
}

.ys-ceiling-piece .ys-svg-symbol {
  color: #60a5fa;
  flex-shrink: 0;
}

.ys-ceiling-action {
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}

.ys-ceiling-action-1 {
  color: #ffffff;
  background: rgba(29, 111, 165, 0.35);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid rgba(96, 165, 250, 0.4);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
}

.ys-ceiling-action-1:hover {
  background: var(--accent-blue);
}

/* --------------------------------------------------------------------------
   5. 导航栏 (Navbar & Header)
   -------------------------------------------------------------------------- */
.ys-masthead {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  height: var(--header-height);
  box-shadow: 0 2px 12px rgba(15, 76, 129, 0.06);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.ys-masthead.scrolled {
  box-shadow: var(--shadow-md);
  height: 72px;
}

.ys-masthead-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.ys-logo-box {
  display: flex;
  align-items: center;
  gap: 16px;
}

.ys-brand-pic {
  width: 300px;
  height: 42px;
  max-width: 100%;
  object-fit: contain;
}

.ys-guide-group {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  margin-right: 28px;
}

.ys-guide-piece {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 6px;
  position: relative;
  transition: var(--transition-fast);
}

.ys-guide-piece:hover, .ys-guide-piece.active {
  color: var(--primary-color);
  background-color: var(--light-blue-bg);
}

.ys-masthead-action {
  display: flex;
  align-items: center;
}

.ys-mobile-action {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
  padding: 4px;
}

/* --------------------------------------------------------------------------
   6. 首屏 Banner (Hero Section - 经典沉稳深海蓝渐变)
   -------------------------------------------------------------------------- */
.ys-showcase-banner {
  position: relative;
  background: var(--gradient-hero);
  color: #ffffff;
  padding: 110px 0 60px 0;
  overflow: hidden;
  text-align: center;
}

.ys-showcase-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.45;
}

.ys-showcase-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 30%, rgba(29, 111, 165, 0.25) 0%, rgba(11, 29, 48, 0.8) 80%);
  z-index: 2;
}

.ys-showcase-content {
  position: relative;
  z-index: 10;
  max-width: 920px;
  margin: 0 auto;
}

.ys-showcase-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  padding: 7px 22px;
  border-radius: 30px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #93c5fd;
  margin-bottom: 28px;
}

.ys-showcase-badge .ys-pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #60a5fa;
  border-radius: 50%;
  box-shadow: 0 0 10px #60a5fa;
  animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(96, 165, 250, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(96, 165, 250, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(96, 165, 250, 0); }
}

.ys-showcase-heading {
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.8px;
  color: #ffffff;
}

.ys-showcase-intro {
  font-size: 1.2rem;
  color: #cbd5e1;
  line-height: 1.75;
  margin: 0 auto 40px auto;
  max-width: 800px;
}

.ys-showcase-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-bottom: 48px;
}

.ys-showcase-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  flex-wrap: wrap;
}

.ys-showcase-tag-piece {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.94rem;
  color: #cbd5e1;
}

.ys-showcase-tag-piece svg {
  color: #60a5fa;
  font-size: 1.15rem;
}

/* --------------------------------------------------------------------------
   7. 权威资质与成就数据 (Honor Section)
   -------------------------------------------------------------------------- */
.ys-honor-bar {
  background: #ffffff;
  margin-top: -45px;
  position: relative;
  z-index: 20;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(15, 76, 129, 0.08);
  padding: 32px 42px;
  border: 1px solid var(--border-color);
}

.ys-honor-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  align-items: center;
}

.ys-honor-panel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-right: 20px;
  border-right: 1px solid var(--border-color);
}

.ys-honor-panel:last-child {
  border-right: none;
  padding-right: 0;
}

.ys-honor-detail h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.ys-honor-detail p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   8. 关于我们模块 (About Us Section)
   -------------------------------------------------------------------------- */
.ys-about-matrix {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.ys-about-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 22px;
  line-height: 1.3;
}

.ys-about-content p {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 24px;
}

.ys-medal-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.ys-medal-panel {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 14px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition-smooth);
}

.ys-medal-panel:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-color);
}

.ys-medal-pic-box {
  width: 100%;
  height: 190px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 14px;
  border: 1px solid #f1f5f9;
  background: #f8fafc;
}

.ys-medal-pic-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.ys-medal-panel:hover .ys-medal-pic-box img {
  transform: scale(1.05);
}

.ys-medal-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   9. 核心服务解决方案 (Services Section)
   -------------------------------------------------------------------------- */
.ys-offer-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.ys-offer-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 38px 32px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.ys-offer-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-blue-primary);
  opacity: 0;
  transition: var(--transition-fast);
}

.ys-offer-panel:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 76, 129, 0.25);
}

.ys-offer-panel:hover::before {
  opacity: 1;
}

.ys-offer-symbol {
  width: 64px;
  height: 64px;
  background: var(--light-blue-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  margin-bottom: 24px;
  border: 1px solid rgba(15, 76, 129, 0.12);
  transition: var(--transition-fast);
}

.ys-offer-panel:hover .ys-offer-symbol {
  background: var(--primary-color);
  color: #ffffff;
}

.ys-offer-symbol svg {
  width: 32px;
  height: 32px;
}

.ys-offer-heading {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.ys-offer-summary {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.68;
  margin-bottom: 24px;
}

.ys-offer-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 26px;
  padding-top: 18px;
  border-top: 1px dashed var(--border-color);
}

.ys-offer-piece {
  font-size: 0.92rem;
  color: var(--text-main);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ys-offer-piece svg {
  color: #10b981;
  font-size: 1rem;
}

.ys-offer-link {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ys-offer-link:hover {
  color: var(--accent-blue);
  gap: 10px;
}

/* --------------------------------------------------------------------------
   10. 核心优势模块 (Advantages Section - 优雅商务蓝)
   -------------------------------------------------------------------------- */
.ys-strength-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.ys-strength-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-md);
  padding: 34px 26px;
  text-align: center;
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.ys-strength-panel:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.ys-strength-symbol {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px auto;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.ys-strength-panel h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.ys-strength-panel p {
  font-size: 0.9rem;
  color: #e2e8f0;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   11. 精选案例模块 (Cases Section)
   -------------------------------------------------------------------------- */
.ys-exhibit-guide {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.ys-filter-action {
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 10px 26px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.ys-filter-action.active {
  background: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
  box-shadow: 0 4px 14px rgba(15, 76, 129, 0.2);
}

.ys-exhibit-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.ys-exhibit-panel {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
}

.ys-exhibit-panel:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 76, 129, 0.2);
}

.ys-exhibit-pic-box {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ys-exhibit-panel:nth-child(n+7) .ys-exhibit-pic-box {
  padding: 56px;
}

.ys-exhibit-pic-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  transition: transform 0.4s ease;
}

.ys-exhibit-panel:hover .ys-exhibit-pic-box img {
  transform: scale(1.06);
}

.ys-exhibit-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--primary-color);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 4px;
}

.ys-exhibit-detail {
  padding: 22px 26px;
}

.ys-exhibit-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   12. 合作客户墙 (Clients Section)
   -------------------------------------------------------------------------- */
.ys-partner-masthead {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 40px auto;
}

.ys-partner-masthead .ys-zone-heading {
  font-size: 2rem;
  margin-bottom: 0;
  color: var(--text-main);
}

.ys-partner-zone {
  padding: 80px 0;
  background-color: #f2f2f2 !important;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.ys-partner-pic-box {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  text-align: center;
  display: flex;
  justify-content: center;
}

.ys-partner-pic-box img {
  width: 1160px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border: none;
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   13. 常见问题 FAQ (FAQ Section)
   -------------------------------------------------------------------------- */
.ys-qa-group {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ys-qa-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.ys-qa-panel.active {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.ys-qa-masthead {
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  background-color: #ffffff;
  user-select: none;
}

.ys-qa-question {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 14px;
}

.ys-qa-badge {
  background: var(--light-blue-bg);
  color: var(--primary-color);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid rgba(15, 76, 129, 0.15);
}

.ys-qa-symbol {
  width: 24px;
  height: 24px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.ys-qa-panel.active .ys-qa-symbol {
  transform: rotate(180deg);
  color: var(--primary-color);
}

.ys-qa-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  background-color: #f8fafc;
}

.ys-qa-panel.active .ys-qa-body {
  max-height: 500px;
  transition: max-height 0.35s ease-in-out;
}

.ys-qa-answer {
  padding: 0 28px 24px 28px;
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px dashed var(--border-color);
  padding-top: 18px;
}

/* --------------------------------------------------------------------------
   14. CTA 转化板块
   -------------------------------------------------------------------------- */
.ys-trigger-wrapper {
  padding: 80px 0;
}

.ys-trigger-panel {
  background: linear-gradient(135deg, #0b1d30 0%, #0f365d 60%, #164e80 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 60px 50px;
  box-shadow: 0 20px 50px rgba(11, 29, 48, 0.25);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.ys-trigger-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  margin-bottom: 20px;
}

.ys-trigger-content h2 {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #ffffff;
  line-height: 1.25;
}

.ys-trigger-content p {
  font-size: 1.08rem;
  color: #cbd5e1;
  margin-bottom: 30px;
  line-height: 1.65;
}

.ys-trigger-checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
}

.ys-trigger-check-piece {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.98rem;
  color: #ffffff;
}

.ys-trigger-check-piece svg {
  color: #60a5fa;
  font-size: 1.1rem;
}

.ys-trigger-qr-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 34px 28px;
  color: var(--text-main);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.ys-trigger-qr-box h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.ys-trigger-qr-sub {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.ys-qr-code-wrapper {
  text-align: center;
}

.ys-qr-code-pic {
  width: 170px;
  height: 170px;
  margin: 0 auto 16px auto;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  padding: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.ys-qr-tip {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.ys-qr-tip strong {
  color: var(--primary-color);
  font-size: 1.05rem;
}

.ys-trigger-call-action {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 12px 0;
  background: var(--primary-color);
  color: #ffffff;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-align: center;
  transition: var(--transition-fast);
}

.ys-trigger-call-action:hover {
  background: var(--accent-blue);
  box-shadow: 0 6px 18px rgba(15, 76, 129, 0.3);
}

/* --------------------------------------------------------------------------
   15. 快捷弹窗 Modal
   -------------------------------------------------------------------------- */
.ys-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 29, 48, 0.75);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.ys-dialog-overlay.active {
  opacity: 1;
  visibility: visible;
}

.ys-dialog-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 440px;
  padding: 34px;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: var(--transition-fast);
}

.ys-dialog-overlay.active .ys-dialog-box {
  transform: translateY(0);
}

.ys-dialog-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  cursor: pointer;
}

.ys-dialog-masthead {
  text-align: center;
  margin-bottom: 20px;
}

.ys-dialog-masthead h3 {
  font-size: 1.35rem;
  color: var(--text-main);
  font-weight: 800;
}

/* --------------------------------------------------------------------------
   16. 页脚 Footer (与全新经典沉稳商务蓝调完全统一)
   -------------------------------------------------------------------------- */
.ys-base-foot {
  background-color: var(--dark-navy);
  color: #cbd5e1;
  padding: 70px 0 30px 0;
  font-size: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ys-base-foot-matrix {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.ys-base-foot-logo-pic {
  width: 260px;
  height: 36px;
  max-width: 100%;
  object-fit: contain;
}

.ys-base-foot-brand p {
  line-height: 1.75;
  margin-top: 18px;
  font-size: 0.88rem;
  color: #94a3b8;
}

.ys-base-foot-heading {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 22px;
}

.ys-base-foot-guide {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ys-base-foot-guide a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.ys-base-foot-contact {
  color: #cbd5e1;
  font-size: 0.88rem;
}

.ys-seo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ys-seo-tag-piece {
  font-size: 0.8rem;
  color: #94a3b8;
  background: rgba(255, 255, 255, 0.06);
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ys-base-foot-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.84rem;
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   17. 响应式布局 Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .ys-about-matrix {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .ys-honor-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .ys-honor-panel:nth-child(2) {
    border-right: none;
  }
  .ys-offer-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .ys-strength-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .ys-exhibit-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .ys-base-foot-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .ys-trigger-panel {
    grid-template-columns: 1fr;
    padding: 40px 30px;
  }
}

@media (max-width: 768px) {
  .ys-ceiling {
    display: none;
  }

  .ys-masthead {
    height: 66px;
  }

  .ys-masthead.scrolled {
    height: 60px;
  }

  .ys-brand-pic {
    width: 190px;
    height: auto;
    max-width: 100%;
  }

  .ys-guide-group {
    position: fixed;
    top: 66px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 66px);
    max-height: calc(100vh - 66px);
    overflow-y: auto;
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 30px 40px 30px;
    gap: 18px;
    margin: 0;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-fast);
    z-index: 999;
  }

  .ys-guide-group.active {
    left: 0;
  }

  .ys-guide-piece {
    width: 100%;
    font-size: 1.05rem;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
  }

  .ys-masthead-action .ys-action {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .ys-mobile-action {
    display: block;
  }

  .ys-showcase-banner {
    padding: 75px 0 85px 0;
  }

  .ys-showcase-badge {
    font-size: 0.82rem;
    padding: 5px 16px;
    margin-bottom: 20px;
  }

  .ys-showcase-heading {
    font-size: 2.1rem;
    line-height: 1.3;
    margin-bottom: 18px;
  }

  .ys-showcase-intro {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 32px;
  }

  .ys-showcase-buttons {
    flex-direction: column;
    width: 100%;
    gap: 14px;
  }

  .ys-showcase-buttons .ys-action {
    width: 100%;
  }

  .ys-showcase-tags {
    gap: 16px 20px;
    padding-top: 26px;
  }

  .ys-showcase-tag-piece {
    font-size: 0.86rem;
  }

  .ys-honor-bar {
    margin-top: -35px;
    padding: 26px 20px;
  }

  .ys-honor-matrix {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ys-honor-panel {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    padding-right: 0;
  }

  .ys-honor-panel:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .ys-medal-matrix {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ys-medal-pic-box {
    height: 200px;
  }

  .ys-offer-matrix {
    grid-template-columns: 1fr;
  }

  .ys-strength-matrix {
    grid-template-columns: 1fr;
  }

  .ys-exhibit-matrix {
    grid-template-columns: 1fr;
  }

  .ys-base-foot-matrix {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .ys-float-aside {
    right: 14px;
    bottom: 24px;
    gap: 10px;
  }

  .ys-float-piece {
    width: 46px;
    height: 46px;
  }

  .ys-float-piece svg {
    width: 20px;
    height: 20px;
  }

  .ys-float-popover {
    right: 56px;
  }
}

@media (max-width: 480px) {
  .ys-masthead-action .ys-action {
    display: none;
  }

  .ys-showcase-heading {
    font-size: 1.8rem;
  }

  .ys-zone-heading {
    font-size: 1.8rem;
  }

  .ys-trigger-content h2 {
    font-size: 1.8rem;
  }
}

/* --------------------------------------------------------------------------
   18. 右侧悬浮客服 Widget & 返回顶部
   -------------------------------------------------------------------------- */
.ys-float-aside {
  position: fixed;
  right: 24px;
  bottom: 50px;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ys-float-piece {
  width: 52px;
  height: 52px;
  background: var(--primary-color);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(15, 76, 129, 0.35);
  cursor: pointer;
  border: none;
  position: relative;
  transition: var(--transition-fast);
  outline: none;
}

.ys-float-piece:hover {
  background: var(--accent-blue);
  box-shadow: var(--shadow-hover);
}

.ys-float-piece svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.ys-float-popover {
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translateY(-50%) translateX(10px);
  background: #ffffff;
  color: var(--text-main);
  padding: 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.25s ease-in-out;
  text-align: center;
  z-index: 1600;
}

.ys-float-popover::before {
  content: '';
  position: absolute;
  right: -24px;
  top: 0;
  width: 30px;
  height: 100%;
  background: transparent;
}

.ys-float-popover::after {
  content: '';
  position: absolute;
  right: -7px;
  top: 50%;
  transform: translateY(-50%);
  border-width: 7px 0 7px 7px;
  border-style: solid;
  border-color: transparent transparent transparent #ffffff;
}

.ys-float-piece:hover .ys-float-popover,
.ys-float-popover:hover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}

.ys-float-phone-pop {
  min-width: 170px;
}

.ys-float-pop-heading {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.ys-float-pop-phone {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 4px;
}

.ys-float-pop-tip {
  font-size: 0.75rem;
  color: #10b981;
  background: #ecfdf5;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
}

.ys-float-qr-pop {
  width: 170px;
}

.ys-float-qr-pic {
  width: 140px;
  height: 140px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  margin: 0 auto 8px auto;
  display: block;
}

.ys-float-qr-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.ys-float-qr-text strong {
  color: var(--primary-color);
}

.ys-float-backtop {
  background: #334155;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
}

.ys-float-backtop.show {
  opacity: 1;
  visibility: visible;
}

.ys-float-backtop:hover {
  background: var(--primary-color);
}

.ys-float-top-pop {
  padding: 6px 14px;
  font-size: 0.82rem;
  min-width: 90px;
}