/* ===================================
   展业软件 · 一卷一账 官网样式系统
   =================================== */

/* ===== CSS Variables ===== */
:root {
  /* 主色 - 深蓝系 */
  --primary: #1A5276;
  --primary-light: #2E86C1;
  --primary-dark: #154360;
  --primary-gradient: linear-gradient(135deg, #1A5276 0%, #2E86C1 100%);

  /* 辅助色 - 橙色CTA */
  --accent: #E67E22;
  --accent-light: #F39C12;
  --accent-dark: #D35400;
  --accent-gradient: linear-gradient(135deg, #E67E22 0%, #F39C12 100%);

  /* 强调色 - 绿色 */
  --success: #27AE60;
  --success-light: #2ECC71;

  /* 背景色 */
  --bg-light: #F8F9FA;
  --bg-white: #FFFFFF;
  --bg-dark: #1B2631;

  /* 文字色 */
  --text-dark: #2C3E50;
  --text-medium: #5D6D7E;
  --text-light: #95A5A6;
  --text-white: #FFFFFF;

  /* 边框 */
  --border-color: #E5E8E8;
  --border-light: #EBEDEF;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.15);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;

  /* 过渡 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* 布局 */
  --container-max: 1200px;
  --header-height: 72px;
}

/* ===== Reset ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary);
}

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

ul, ol {
  list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.375rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-white { color: var(--text-white); }
.text-medium { color: var(--text-medium); }
.text-light { color: var(--text-light); }

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-fluid {
  width: 100%;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 48px 0;
}

.section-lg {
  padding: 120px 0;
}

.section-bg-light { background: var(--bg-light); }
.section-bg-dark { background: var(--bg-dark); }
.section-bg-primary { background: var(--primary-gradient); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header .subtitle {
  font-size: 1.25rem;
  color: var(--text-medium);
  max-width: 700px;
  margin: 0 auto;
}

.section-header .badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(46, 134, 193, 0.1);
  color: var(--primary-light);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

/* ===== Grid System ===== */
.grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-7 { grid-template-columns: repeat(auto-fit, minmax(calc(100% / 7 * 1.5), 1fr)); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: 12px; }
.gap-md { gap: 24px; }
.gap-lg { gap: 40px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--text-white);
  box-shadow: 0 4px 15px rgba(230, 126, 34, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(230, 126, 34, 0.45);
  color: var(--text-white);
}

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-white);
  color: var(--text-white);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--text-white);
}

.btn-outline-light {
  background: transparent;
  color: var(--primary-light);
  border: 2px solid var(--border-color);
}

.btn-outline-light:hover {
  border-color: var(--primary-light);
  background: rgba(46, 134, 193, 0.05);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

/* ===== Header / Navigation ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--border-light);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-img {
  height: 48px; /* 由 40px 加大 15% */
  width: auto;
  display: block;
  flex-shrink: 0;
}

.logo-img-light {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  height: 40px;
}

.logo-brand-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}

.footer-brand .logo-brand-text {
  color: #fff;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .logo-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
}

.logo-text .logo-slogan {
  font-size: 0.7rem;
  color: var(--text-light);
  font-weight: 500;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
  background: rgba(46, 134, 193, 0.08);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  transition: var(--transition);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 24px;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.footer-col h5 {
  color: white;
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: white;
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: white;
}

/* ===== Page Banner (Inner Pages) ===== */
.page-banner {
  padding: calc(var(--header-height) + 80px) 0 80px;
  --page-banner-image: url('../images/banner-solution.png');
  background-image:
    linear-gradient(135deg, rgba(21, 67, 96, 0.85) 0%, rgba(26, 82, 118, 0.80) 50%, rgba(46, 134, 193, 0.70) 100%),
    var(--page-banner-image);
  background-position: center, center;
  background-size: cover, cover;
  background-repeat: no-repeat, no-repeat;
  background-color: var(--primary);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner--solution   { --page-banner-image: url('../images/banner-solution.png'); }
.page-banner--features   { --page-banner-image: url('../images/banner-features.png'); }
.page-banner--painpoints { --page-banner-image: url('../images/banner-painpoints.png'); }
.page-banner--cases      { --page-banner-image: url('../images/banner-cases.png'); }
.page-banner--about      { --page-banner-image: url('../images/banner-about.png'); }
.page-banner--news       { --page-banner-image: url('../images/banner-news.png'); }
.page-banner--contact    { --page-banner-image: url('../images/banner-contact.png'); }

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="60" viewBox="0 0 60 60"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><circle cx="30" cy="30" r="2"/></g></g></svg>');
}

.page-banner h1 {
  color: white;
  margin-bottom: 16px;
  position: relative;
}

.page-banner .subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
}

.page-banner .breadcrumb {
  margin-top: 20px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  position: relative;
}

.page-banner .breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.page-banner .breadcrumb a:hover {
  color: white;
}

/* ===== Cards ===== */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.75rem;
}

.card-icon.bg-primary { background: rgba(46, 134, 193, 0.1); color: var(--primary-light); }
.card-icon.bg-accent { background: rgba(230, 126, 34, 0.1); color: var(--accent); }
.card-icon.bg-success { background: rgba(39, 174, 96, 0.1); color: var(--success); }
.card-icon.bg-purple { background: rgba(155, 89, 182, 0.1); color: #9B59B6; }
.card-icon.bg-teal { background: rgba(26, 188, 156, 0.1); color: #1ABC9C; }
.card-icon.bg-red { background: rgba(231, 76, 60, 0.1); color: #E74C3C; }
.card-icon.bg-orange { background: rgba(243, 156, 18, 0.1); color: #F39C12; }

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-medium);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ===== Client Logos Marquee ===== */
.client-logos {
  padding: 56px 0 64px;
  background: var(--bg-light);
}

.client-logos-header {
  text-align: center;
  margin-bottom: 36px;
}

.client-logos-header h3 {
  font-size: 1.6rem;
  color: var(--text-medium);
  font-weight: 500;
  margin-bottom: 8px;
}

.client-logos-header h3 span {
  color: var(--primary);
  font-weight: 800;
  font-size: 1.9rem;
}

.client-logos-header p {
  color: var(--text-light);
  font-size: 1rem;
}

.logo-marquee {
  position: relative;
  overflow: hidden;
  padding: 12px 0;
  /* fade edges */
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.logo-track {
  display: flex;
  width: max-content;
  gap: 22px;
  animation: logo-marquee 60s linear infinite;
}

.logo-marquee:hover .logo-track {
  animation-play-state: paused;
}

.logo-item {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 270px;
  padding: 22px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: default;
}

.logo-item:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
  z-index: 2;
  position: relative;
}

.logo-badge {
  width: 53px;
  height: 53px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.45rem;
  flex-shrink: 0;
}

.logo-name {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logo-name span {
  display: block;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-light);
  margin-top: 2px;
}

@keyframes logo-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-50% - 11px)); }
}

@media (max-width: 768px) {
  .logo-item { width: 210px; padding: 16px 14px; gap: 10px; }
  .logo-badge { width: 44px; height: 44px; font-size: 1.2rem; }
  .logo-name { font-size: 0.85rem; }
  .logo-name span { font-size: 0.7rem; }
}

.logo-c-1 { background: linear-gradient(135deg, #1A5276, #2E86C1); }
.logo-c-2 { background: linear-gradient(135deg, #E67E22, #F39C12); }
.logo-c-3 { background: linear-gradient(135deg, #27AE60, #2ECC71); }
.logo-c-4 { background: linear-gradient(135deg, #8E44AD, #9B59B6); }
.logo-c-5 { background: linear-gradient(135deg, #16A085, #1ABC9C); }
.logo-c-6 { background: linear-gradient(135deg, #C0392B, #E74C3C); }
.logo-c-7 { background: linear-gradient(135deg, #2C3E50, #34495E); }
.logo-c-8 { background: linear-gradient(135deg, #D35400, #E67E22); }

/* ===== Pain Point Cards ===== */
.painpoint-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--accent);
  transition: var(--transition);
}

.painpoint-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.painpoint-card .painpoint-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 16px;
}

.painpoint-card h3 {
  font-size: 1.125rem;
  margin-bottom: 10px;
}

.painpoint-card p {
  color: var(--text-medium);
  font-size: 0.9rem;
}

.painpoint-card .cost {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.85rem;
  color: var(--accent-dark);
  font-weight: 500;
}

/* ===== Pain Point Marquee (Homepage) ===== */
.painpoint-marquee {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
  /* fade edges */
  -webkit-mask-image: linear-gradient(to right, transparent, black 6%, black 94%, transparent);
  mask-image: linear-gradient(to right, transparent, black 6%, black 94%, transparent);
}

.painpoint-track {
  display: flex;
  width: max-content;
  animation: painpoint-marquee 45s linear infinite;
}

.painpoint-marquee:hover .painpoint-track {
  animation-play-state: paused;
}

.painpoint-group {
  display: flex;
  gap: 24px;
  padding-right: 24px;
  flex-shrink: 0;
}

.painpoint-marquee .painpoint-card {
  width: 280px;
  flex-shrink: 0;
  cursor: default;
}

.painpoint-marquee .painpoint-card:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
  z-index: 2;
  background: var(--bg-white);
  position: relative;
}

@keyframes painpoint-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (max-width: 768px) {
  .painpoint-marquee .painpoint-card { width: 230px; }
  .painpoint-group { gap: 16px; padding-right: 16px; }
}

/* ===== Feature Module Cards ===== */
.feature-module {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.feature-module:hover {
  box-shadow: var(--shadow-lg);
}

.feature-module-header {
  padding: 28px 32px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border-light);
}

.feature-module-header .module-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--primary-gradient);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.feature-module-header h3 {
  font-size: 1.25rem;
  margin: 0;
}

.feature-module-body {
  padding: 24px 32px 32px;
}

.feature-module-body h4 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 12px;
  margin-top: 16px;
}

.feature-module-body h4:first-child {
  margin-top: 0;
}

.feature-module-body ul {
  list-style: none;
  padding: 0;
}

.feature-module-body ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-medium);
}

.feature-module-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
}

.feature-module-body .value-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(39, 174, 96, 0.1);
  color: var(--success);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin: 4px 4px 0 0;
}

/* ===== Stats / Counter ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 32px 16px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-medium);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(21, 67, 96, 0.95) 0%, rgba(26, 82, 118, 0.9) 50%, rgba(46, 134, 193, 0.85) 100%),
    url('../images/hero-bg.png') center/cover no-repeat;
  color: white;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg-white), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero h1 {
  color: white;
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .hero-subtitle {
  font-size: 1.35rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat .stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}

.hero-stat .stat-desc {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 6px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 32px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

.hero-trust .trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== 全链路流程图 (Solution Pipeline) ===== */
.solution-pipeline {
  padding: 24px 0 16px;
}

.pipeline-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 24px;
  position: relative;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
  height: 100%;
}

.pipeline-node {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--bg-white);
  border: 4px solid var(--primary-light);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 18px;
  position: relative;
  transition: var(--transition);
}

.pipeline-node::after {
  content: attr(data-step);
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

.pipeline-node.node-accent { border-color: var(--accent); }
.pipeline-node.node-success { border-color: var(--success); }

.pipeline-step:hover .pipeline-node {
  transform: scale(1.1) translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.pipeline-card {
  width: 100%;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--primary-light);
  text-align: center;
  transition: var(--transition);
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pipeline-card.card-accent { border-top-color: var(--accent); }
.pipeline-card.card-success { border-top-color: var(--success); }

.pipeline-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.pipeline-card p {
  font-size: 0.85rem;
  color: var(--text-medium);
  line-height: 1.5;
  margin: 0;
}

.pipeline-step:hover .pipeline-card {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

@media (max-width: 640px) {
  .pipeline-track {
    grid-template-columns: 1fr;
    padding-left: 28px;
    gap: 24px;
  }
  .pipeline-step {
    flex-direction: row;
    align-items: flex-start;
    gap: 16px;
  }
  .pipeline-node {
    width: 52px;
    height: 52px;
    font-size: 1.35rem;
    margin-bottom: 0;
    flex-shrink: 0;
  }
  .pipeline-node::after { display: none; }
  .pipeline-card {
    flex: 1;
    text-align: left;
    padding: 16px 18px;
  }
  .pipeline-track::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 24px;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--accent) 50%, var(--success) 100%);
    border-radius: 2px;
    z-index: 0;
  }
}

/* ===== ROI Table ===== */
.roi-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.roi-table thead {
  background: var(--primary-gradient);
  color: white;
}

.roi-table th {
  padding: 18px 24px;
  text-align: left;
  font-weight: 600;
  font-size: 0.95rem;
}

.roi-table td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
}

.roi-table tbody tr {
  transition: var(--transition);
}

.roi-table tbody tr:hover {
  background: var(--bg-light);
}

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

.roi-table .total-row {
  background: rgba(39, 174, 96, 0.05);
  font-weight: 700;
}

.roi-table .total-row td {
  color: var(--success);
  font-size: 1.05rem;
}

.roi-table .value-col {
  color: var(--accent);
  font-weight: 600;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--border-color);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 40px 40px 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding: 0 0 40px 40px;
}

.timeline-item .timeline-dot {
  position: absolute;
  right: -8px;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--primary-light);
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--primary-light);
  z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
  right: auto;
}

.timeline-item .timeline-content {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.timeline-item .timeline-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-medium);
  margin: 0;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group label .required {
  color: var(--accent);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: inherit;
  background: var(--bg-white);
  color: var(--text-dark);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(46, 134, 193, 0.1);
}

.form-control::placeholder {
  color: var(--text-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

select.form-control {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%235D6D7E" d="M6 8L0 0h12z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

.checkbox-item:hover {
  border-color: var(--primary-light);
}

.checkbox-item input {
  accent-color: var(--primary-light);
}

.checkbox-item:has(input:checked) {
  border-color: var(--primary-light);
  background: rgba(46, 134, 193, 0.05);
}

/* ===== Contact Info Cards ===== */
.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.contact-info-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-info-card .info-icon {
  width: 48px;
  height: 48px;
  background: rgba(46, 134, 193, 0.1);
  color: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-card .info-content h4 {
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 500;
  margin-bottom: 4px;
}

.contact-info-card .info-content p {
  font-size: 1.05rem;
  color: var(--text-dark);
  font-weight: 600;
  margin: 0;
}

/* ===== Benefit Box ===== */
.benefit-box {
  background: linear-gradient(135deg, rgba(39, 174, 96, 0.05) 0%, rgba(46, 134, 193, 0.05) 100%);
  border: 1px solid rgba(39, 174, 96, 0.2);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.benefit-box h4 {
  color: var(--success);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.benefit-list li {
  padding: 10px 0 10px 32px;
  position: relative;
  font-size: 0.95rem;
  color: var(--text-dark);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.benefit-list li:last-child {
  border-bottom: none;
}

.benefit-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 10px;
  width: 22px;
  height: 22px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ===== Case Cards ===== */
.case-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.case-card-image {
  height: 200px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card-body {
  padding: 28px;
}

.case-card-body .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(46, 134, 193, 0.1);
  color: var(--primary-light);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.case-card-body h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.case-card-body .case-info {
  font-size: 0.9rem;
  color: var(--text-medium);
  margin-bottom: 16px;
}

.case-card-body .case-info p {
  margin-bottom: 6px;
}

.case-card-body .case-info strong {
  color: var(--text-dark);
  font-weight: 600;
}

.case-result {
  padding: 16px;
  background: rgba(39, 174, 96, 0.05);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--success);
  font-size: 0.875rem;
  color: var(--text-dark);
}

/* ===== Value Proposition ===== */
.value-card {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-card .value-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--primary-gradient);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.value-card h3 {
  margin-bottom: 12px;
}

.value-card .value-metric {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--success);
  margin-top: 16px;
}

.value-card p {
  color: var(--text-medium);
  font-size: 0.95rem;
}

/* ===== Quote Block ===== */
.quote-block {
  position: relative;
  padding: 48px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.quote-block::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 30px;
  font-size: 6rem;
  color: var(--primary-light);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

.quote-block p {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-dark);
  font-style: italic;
  position: relative;
}

.quote-block .quote-author {
  margin-top: 20px;
  font-size: 0.95rem;
  color: var(--text-medium);
  font-weight: 600;
}

/* ===== News Cards ===== */
.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card-image {
  height: 180px;
  background: var(--primary-gradient);
  position: relative;
}

.news-card-image .news-category {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.news-card-body {
  padding: 24px;
}

.news-card-body .news-date {
  font-size: 0.825rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.news-card-body h3 {
  font-size: 1.125rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-card-body p {
  font-size: 0.9rem;
  color: var(--text-medium);
  margin-bottom: 12px;
}

.news-card-body .news-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-light);
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--primary-gradient);
  color: white;
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section h2 {
  color: white;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

/* ===== Animation Classes ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }
.delay-7 { transition-delay: 0.7s; }

/* ===== Section Divider ===== */
.divider {
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  border-radius: 2px;
  margin: 20px auto;
}

/* ===== Tag / Badge ===== */
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.tag-primary { background: rgba(46, 134, 193, 0.1); color: var(--primary-light); }
.tag-success { background: rgba(39, 174, 96, 0.1); color: var(--success); }
.tag-accent { background: rgba(230, 126, 34, 0.1); color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-7 { grid-template-columns: repeat(auto-fit, minmax(calc(100% / 7 * 1.5), 1fr)); }

  .stats-row { grid-template-columns: repeat(2, 1fr); }

  .hero h1 { font-size: 2.5rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }

  .site-footer .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-lg { padding: 80px 0; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.625rem; }
  h3 { font-size: 1.375rem; }

  .container { padding: 0 20px; }

  /* Mobile Navigation */
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .main-nav a {
    padding: 16px;
    border-bottom: 1px solid var(--border-light);
    font-size: 1rem;
  }

  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* Grid adjustments */
  .grid-2, .grid-3, .grid-4, .grid-7 {
    grid-template-columns: 1fr;
  }

  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }

  /* Hero */
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 2rem; }
  .hero .hero-subtitle { font-size: 1.1rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); padding: 20px; }

  /* Timeline */
  .timeline::before { left: 20px; }
  .timeline-item {
    width: 100%;
    padding: 0 0 32px 48px;
  }
  .timeline-item:nth-child(even) {
    left: 0;
    padding: 0 0 32px 48px;
  }
  .timeline-item .timeline-dot {
    left: 12px;
    right: auto;
  }
  .timeline-item:nth-child(even) .timeline-dot {
    left: 12px;
  }

  /* Footer */
  .site-footer .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* ROI Table */
  .roi-table { font-size: 0.8rem; }
  .roi-table th, .roi-table td { padding: 12px 14px; }

  /* Quote */
  .quote-block { padding: 32px 24px; }
  .quote-block p { font-size: 1.05rem; }
}

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.75rem; }
  .section-header h2 { font-size: 1.5rem; }
}