html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  color: #222;
  line-height: 1.8;
  background-color: #fff;
}


/* 导航栏样式 */
.navbar {
  padding: 1em;
  transition: all 0.3s ease;
  box-shadow: 1px 5px 11px -3px rgba(0,0,0,0.1);
  -webkit-box-shadow: 1px 5px 11px -3px rgba(0,0,0,0.1);
  -moz-box-shadow: 1px 5px 11px -3px rgba(0,0,0,0.1);
}

.navbar-brand img {
  height: 60px;
}

.navbar-nav .nav-link {
  color: #222;
  font-weight: 400;
  padding: 0 !important;
  transition: all 0.3s ease;
  border-bottom: 1px solid #fff;
  margin: .5em .6em;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  border-bottom: 1px solid #00bcd4;
  color: #00bcd4;
}

.navbar-nav .nav-item.special .nav-link {
  background-color: #000;
  color: #fff;
  border-radius: 4px;
  padding: 8px 20px;
}

.navbar-nav .nav-item.special .nav-link:hover {
  background-color: #fff;
}

.btn-green {
  display: inline-block;
  border: 1px solid #24d1db;
  border-radius: 2em;
  background: linear-gradient(90deg, #a1fa93, #24d1db);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 400;
  padding: 0.5em 2em;
  transition: background 0.6s, color 0.25s, border 0.25s, box-shadow 0.25s;
  box-shadow: 0 2px 8px rgba(36, 209, 219, 0.08);
  cursor: pointer;
  opacity: 1;
  pointer-events: auto;
  will-change: background, color, border, box-shadow;
  overflow: hidden;
}

.btn-green:hover,
.btn-green:focus {
  background: linear-gradient(90deg, #24d1db, #a1fa93);
  color: #fff;
  border-color: #1bb3b9;
  box-shadow: 0 4px 16px rgba(36, 209, 219, 0.16);
  text-decoration: none;
}

.btn-green:active {
  background: linear-gradient(90deg, #1bb3b9, #a1fa93);
  color: #fff;
  border-color: #168e92;
  box-shadow: 0 2px 4px rgba(36, 209, 219, 0.12);
}

/* 首页 */

.hero-section {
  background-color: #f8f9fa;
  padding: 180px 0;
  text-align: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 30rem;
}
.hero-section h1 {
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
}
.hero-section p {
  font-size: 1.25rem;
  color: #fff;
  font-weight: 400;
}
.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-weight: 700;
  color: #222;
}
.benefit-card, .step-card, .faq-item {
  background: #fff;
  border: none;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  padding: 30px;
  margin-bottom: 30px;
}
.benefit-icon {
  text-align: center;
  font-size: 3.5rem;
  color: #23d0b0;
  margin-bottom: 15px;

}
.benefit-card h5 {
  font-weight: 700;
  color: #333;
}
.how-it-works-section .step-number {
  font-size: 2rem;
  font-weight: 900;
  color: #23d0b0;
  line-height: 1;
  margin-bottom: .8em;
  font-style: italic;
}
.how-it-works-section .step-card h5 {
   font-weight: 700;
}
.form-section {
  background-color: #f8f9fa;
  padding: 60px 0;
}
.form-section .form-control {
  border-radius: 8px;
  padding: 12px;
}

.faq-question {
  font-weight: 700;
  color: #23d0b0;
}

.nav-link-icon {
  display: flex;
  align-items: center;
  gap: 0.3em;
  background: none !important;
  border: none !important;
  color: #222;
  font-weight: 400;
  transition: color 0.2s;
  font-size: .8em;
}
.nav-link-icon:hover, .nav-link-icon:focus {
  color: #00bcd4;
  text-decoration: none;
}

@media (max-width: 768px) {
  .navbar {
    padding: 0;
  }
}