/* 基础重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; }
body {
  font-family: 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
  background: #181c23;
  color: #f1f1f1;
  line-height: 1.7;
}
.site-header {
  background: #23272f;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #2e323c;
}
.logo {
  font-size: 2rem;
  font-weight: bold;
  letter-spacing: 2px;
  color: #00ffe7;
}
.header-contact {
  font-size: 1rem;
  color: #ffb400;
}
.site-nav {
  background: #1a1d23;
  border-bottom: 1px solid #23272f;
}
.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  justify-content: center;
}
.site-nav li {
  margin: 0.5rem 1.5rem;
}
.site-nav a {
  color: #f1f1f1;
  text-decoration: none;
  font-size: 1.1rem;
  transition: color 0.2s;
}
.site-nav a:hover {
  color: #00ffe7;
}
.container {
  display: flex;
  max-width: 1200px;
  margin: 2rem auto;
  gap: 2rem;
  padding: 0 1rem;
}
.main-content {
  flex: 3;
}
.sidebar {
  flex: 1;
  background: #23272f;
  padding: 1.5rem 1rem;
  border-radius: 8px;
  min-width: 220px;
  max-width: 300px;
}
.hero {
  background: linear-gradient(90deg, #23272f 60%, #00ffe7 100%);
  padding: 2rem 1.5rem;
  border-radius: 10px;
  margin-bottom: 2rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.hero h1 {
  font-size: 2.2rem;
  color: #00ffe7;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.2rem;
}
.services, .cases, .process, .faq, .contact {
  background: #23272f;
  margin-bottom: 2rem;
  padding: 1.5rem 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}
.services h2, .cases h2, .process h2, .faq h2, .contact h2 {
  color: #00ffe7;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}
.services ul {
  list-style: disc inside;
  margin-left: 1rem;
}
.cases .case-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.cases .case-item {
  flex: 1 1 220px;
  background: #181c23;
  padding: 1rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
.process ol {
  margin-left: 1.2rem;
}
.faq dt {
  font-weight: bold;
  margin-top: 1rem;
  color: #00ffe7;
}
.faq dd {
  margin-left: 1.2rem;
  margin-bottom: 0.5rem;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.contact-form label {
  font-weight: bold;
}
.contact-form input, .contact-form select, .contact-form textarea {
  padding: 0.5rem;
  border: none;
  border-radius: 4px;
  background: #181c23;
  color: #f1f1f1;
  font-size: 1rem;
}
.contact-form button {
  background: #00ffe7;
  color: #181c23;
  border: none;
  border-radius: 4px;
  padding: 0.7rem;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}
.contact-form button:hover {
  background: #00bfae;
}
.sidebar h3 {
  color: #ffb400;
  margin-bottom: 0.5rem;
}
.sidebar p, .sidebar ul {
  font-size: 0.98rem;
  margin-bottom: 0.7rem;
}
.notice ul {
  list-style: disc inside;
  margin-left: 1rem;
}
.site-footer {
  background: #23272f;
  color: #aaa;
  text-align: center;
  padding: 1.2rem 0 1.5rem 0;
  font-size: 0.98rem;
  margin-top: 2rem;
  border-top: 2px solid #2e323c;
}
@media (max-width: 900px) {
  .container {
    flex-direction: column;
    gap: 0;
  }
  .sidebar {
    max-width: 100%;
    margin-top: 1.5rem;
  }
  .main-content {
    min-width: 0;
  }
  .cases .case-list {
    flex-direction: column;
  }
}
@media (max-width: 600px) {
  html { font-size: 15px; }
  .site-header, .site-nav, .container, .site-footer {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav li {
    margin: 0.5rem 0;
  }
  .sidebar {
    padding: 1rem 0.5rem;
  }
  .hero {
    padding: 1.2rem 0.7rem;
  }
  .services, .cases, .process, .faq, .contact {
    padding: 1rem 0.5rem;
  }
}

/* Banner 区域左右结构 */
.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(90deg, #23272f 60%, #00ffe7 100%);
  color: #181c23;
  padding: 2.2rem 1.5rem 1.5rem 1.5rem;
  border-radius: 12px;
  margin: 1.5rem auto 2rem auto;
  box-shadow: 0 2px 16px rgba(0,0,0,0.18);
  max-width: 1200px;
  min-height: 260px;
}
.banner-left {
  flex: 1.2;
  min-width: 220px;
}
.banner-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.banner-img {
  max-width: 320px;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.18);
  border: 3px solid #fff;
}
.banner h1 {
  font-size: 2.5rem;
  color: #00ffe7;
  margin-bottom: 0.7rem;
  letter-spacing: 2px;
}
.banner .slogan {
  font-size: 1.25rem;
  margin-bottom: 1.2rem;
  color: #23272f;
}
.banner-highlights {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
  list-style: none;
  font-size: 1.08rem;
}
.banner-highlights li {
  background: #fff;
  color: #23272f;
  border-radius: 20px;
  padding: 0.4rem 1.1rem;
  font-weight: bold;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
.banner-trust {
  font-size: 1.1rem;
  color: #23272f;
  margin-top: 0.5rem;
}
.banner-trust span {
  color: #ffb400;
  font-weight: bold;
  font-size: 1.2em;
}
@media (max-width: 900px) {
  .banner {
    flex-direction: column;
    align-items: stretch;
    min-height: unset;
    padding: 1.2rem 0.7rem;
  }
  .banner-left, .banner-right {
    width: 100%;
    min-width: 0;
  }
  .banner-img {
    max-width: 90vw;
    margin-top: 1rem;
  }
}

/* 服务细分卡片 */
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 1rem;
}
.service-item {
  flex: 1 1 220px;
  background: #181c23;
  border: 1px solid #23272f;
  border-radius: 8px;
  padding: 1.2rem 1rem 1rem 1rem;
  text-align: center;
  box-shadow: 0 1px 6px rgba(0,0,0,0.09);
  min-width: 180px;
  max-width: 260px;
}
.service-item .icon {
  font-size: 2.1rem;
  margin-bottom: 0.5rem;
}
.service-item h3 {
  color: #00ffe7;
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}
.service-item p {
  font-size: 0.98rem;
  color: #ccc;
}

/* 平台优势 */
.advantages {
  background: #23272f;
  margin-bottom: 2rem;
  padding: 1.5rem 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}
.advantage-list {
  list-style: none;
  padding-left: 0;
  margin-top: 1rem;
}
.advantage-list li {
  font-size: 1.05rem;
  margin-bottom: 0.7rem;
  color: #f1f1f1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.advantage-list b {
  color: #00ffe7;
}

/* 客户评价/案例 */
.case-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.case-item {
  flex: 1 1 220px;
  background: #181c23;
  padding: 1rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  border: 1px solid #23272f;
  min-width: 180px;
  max-width: 260px;
}
.case-item h3 {
  color: #ffb400;
  font-size: 1.08rem;
  margin-bottom: 0.3rem;
}
.case-item .case-user {
  color: #00ffe7;
  font-size: 0.95em;
}

/* 追款知识 */
.knowledge {
  background: #23272f;
  margin-bottom: 2rem;
  padding: 1.5rem 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}
.knowledge ul {
  list-style: disc inside;
  margin-left: 1rem;
  color: #ffb400;
}
.knowledge li {
  margin-bottom: 0.5rem;
  color: #ffb400;
}

/* 隐私承诺 */
.privacy {
  background: #23272f;
  margin-bottom: 2rem;
  padding: 1.2rem 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
  color: #00ffe7;
  font-size: 1.05rem;
}
.privacy h2 {
  color: #ffb400;
  font-size: 1.15rem;
  margin-bottom: 0.7rem;
}
.privacy p {
  color: #f1f1f1;
}

/* 悬浮咨询按钮 */
.floating-consult {
  position: fixed;
  right: 2.2rem;
  bottom: 2.2rem;
  background: #00ffe7;
  color: #181c23;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.18);
  cursor: pointer;
  z-index: 999;
  transition: background 0.2s, color 0.2s;
}
.floating-consult:hover {
  background: #00bfae;
  color: #fff;
}

@media (max-width: 900px) {
  .container {
    flex-direction: column;
    gap: 0;
  }
  .sidebar {
    max-width: 100%;
    margin-top: 1.5rem;
  }
  .main-content {
    min-width: 0;
  }
  .case-list, .service-list {
    flex-direction: column;
    align-items: stretch;
  }
  .banner-highlights {
    flex-direction: column;
    align-items: center;
  }
}
@media (max-width: 600px) {
  html { font-size: 15px; }
  .site-header, .site-nav, .container, .site-footer {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav li {
    margin: 0.5rem 0;
  }
  .sidebar {
    padding: 1rem 0.5rem;
  }
  .hero, .banner {
    padding: 1.2rem 0.7rem;
  }
  .services, .cases, .process, .faq, .contact, .advantages, .knowledge, .privacy {
    padding: 1rem 0.5rem;
  }
  .floating-consult {
    right: 1rem;
    bottom: 1rem;
    width: 46px;
    height: 46px;
    font-size: 1.5rem;
  }
}