body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  color: #333;
  line-height: 1.8;
  background-color: #fff;
}
header {
  background-color: #1677FF;
  background-size: cover;
  background-position: center;
  padding: 40px 20px;
  text-align: center;
  color: #fff;
  position: relative;
}
header.buyer-center {
  background-image: url('/images/banner-buyer-center.jpg') !important;
}
header.submit-overstock {
  background-image: url('/images/banner-buyer-center.jpg') !important;
}
header img.logo {
  max-width: 200px;
  margin-bottom: 20px;
}
h1 {
  font-size: clamp(24px, 5vw, 46px);
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
  text-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
}
p {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}
.lang-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  color: #fff;
  font-size: 14px;
}
.lang-toggle a {
  color: #fff;
  margin: 0 10px 0 10px;
  text-decoration: none;
}
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
  padding-bottom: 100px;
}
h2 {
  color: #1677FF;
  margin-top: 40px;
}
ul {
  padding-left: 20px;
}
li {
  line-height: 2.1;
}
.faq-item {
  border-top: 1px solid #ccc;
  padding: 10px 0;
  cursor: pointer;
}
.faq-item h4 {
  margin: 0;
  display: flex;
  justify-content: space-between;
}
.faq-answer {
  display: none;
  margin-top: 10px;
  color: #555;
}
.faq-answer strong {
  color: #000;
}
.faq-answer ul {
  padding-left: 50px;
}
.submit-button {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #F85959;
  color: #fff;
  font-size: 18px;
  text-align: center;
  padding: 15px;
  cursor: pointer;
  z-index: 1000;
}
.submit-button:hover {
  opacity: 0.9;
}

form {
  max-width: 720px;
  margin: 2rem auto;
  padding: 2rem;
  background-color: #fafafa;
  border: 1px solid #eee;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

form label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
}

form input[type="text"],
form input[type="number"],
form input[type="url"],
form input[type="password"],
form textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-top: 0.3rem;
  box-sizing: border-box;
}

form textarea {
  resize: vertical;
}

form button[type="submit"] {
  display: inline-block;
  background-color: #1677FF;
  color: white;
  font-size: 16px;
  font-weight: bold;
  padding: 0.8rem 1.6rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 1.2rem;
  transition: background-color 0.3s ease;
}

form button[type="submit"]:hover {
  background-color: #388aff;
}

.login_bottom {
  max-width: 720px;
  margin: 0 auto 2rem;
  font-size: 15px;
  line-height: 1.6;
}
.whatsapp-button {
  display: inline-block;
  padding: 8px 16px;
  background-color: #25D366;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}
.whatsapp-button:hover {
  background-color: #1ebe5d;
}

.footer {
  width: 100%;
  color: #666;
  font-size: 13px;
  text-align: center;
  padding: 20px 0 0 0;
  margin-top: 40px;
  border-top: 1px solid #ddd;
}
@media (max-width: 600px) {
  header img.logo {
    max-width: 140px;
  }
}
.footer-link {
  color: #666;
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

.flow-container {
  background-color: #f9f9f9;
  padding: 40px 20px;
  border-radius: 12px;
  margin-top: 40px;
}

.flow-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  text-align: center;
}

.flow-step {
  flex: 1 1 14%;
  min-width: 120px;
}

.flow-icon-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 48px;
  margin-bottom: 10px;
}

.flow-icon {
  width: 32px;
  height: 32px;
  color: #1677FF;
}

.flow-step p {
  font-size: 14px;
  color: #333;
}

.flow-note {
  margin-top: 30px;
  font-size: 13px;
  color: #666;
  text-align: center;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .flow-steps {
    flex-direction: column;
    align-items: center;
  }

  .flow-step {
    width: 100%;
  }
}
.flow-index {
  font-weight: bold;
}
.wechat-tip {
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  box-sizing: border-box;
}

.wechat-arrow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: auto;
  z-index: 10000;
}
.buyer-benefits {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  background-color: #f6fdf9;
  border: 1px solid #d2f4e1;
  border-radius: 10px;
  padding: 24px;
  margin: 40px 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}
.benefit-item {
  flex: 1 1 280px;
  background-color: #ffffff;
  padding: 14px 18px;
  border-left: 4px solid #28a745;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  color: #333;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}
.weekly-stock-preview {
  background-color: #fff;
  border-left: 4px solid #28a745;
  padding: 20px;
  margin: 40px 0;
  text-align: left;
}

.weekly-stock-preview h2 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #222;
}

.stock-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px 0;
  font-size: 16px;
  line-height: 1.6;
}

.stock-list li {
  margin-bottom: 4px;
}

.wechat-hint {
  font-size: 15px;
  color: #444;
  margin-bottom: 6px;
}