* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ============ 顶部固定区(logo栏+导航) ============ */
.site-top {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #0c0606;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

/* ============ 头部 ============ */
.header {
  max-width: 960px;
  min-height: 100px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: #facd06 2px solid;
  gap: 10px;
}

.logo {
  display: flex;
  gap: 10px;
  align-items: center;
}

.logo img {
  border: 2px solid #facd06;
  border-radius: 50px;
  width: 60px;
  height: 60px;
  object-fit: cover;
  overflow: hidden;
  flex-shrink: 0;
}

.company-name {
  color: #facd06;
  font-size: 24px;
  font-weight: bold;
  white-space: nowrap;
}

/* ============ 导航 ============ */
.nav {
  background-color: #290505;
}

.nav-list {
  max-width: 960px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
}

.nav-list li {
  background-color: transparent;
  padding: 10px 20px;
  transition: all 0.3s ease;
}

.nav-list li:hover {
  background-color: #facd06;
  color: #000;
  border-radius: 5px;
}

.nav-toggle {
  display: inline-block;
  padding: 10px 16px;
  background-color: transparent;
  border: 2px solid #facd06;
  color: #facd06;
  border-radius: 5px;
  font-size: 16px;
  white-space: nowrap;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-toggle:hover {
  background-color: #036e1e;
  color: #ebe5e5;
  border-color: #036e1e;
}

/* ============ 横幅 ============ */
.bar {
  position: relative;
  width: 100%;
  min-height: 400px;
  background-image: url(../images/bar.png);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.bar:hover .text {
  background-color: rgba(55, 88, 18, 0.7);
}

.text {
  position: absolute;
  top: 50px;
  left: 20px;
  width: 300px;
  max-width: calc(100% - 40px);
  padding: 20px;
  text-align: center;
  border-radius: 20px;
  background-color: rgba(0, 0, 0, 0.5);
  transition: background-color 0.3s ease;
}

.text h1 {
  font-size: 36px;
  color: #d4af37;
  margin-bottom: 10px;
  text-align: center;
  font-style: italic;
}

.text p {
  font-size: 18px;
  color: #fff;
  text-align: center;
}

.text button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #facd06;
  color: #020202;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.text button:hover {
  background-color: #036e1e;
  color: #ebe5e5;
}

/* ============ 主内容 ============ */
.main-content {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  gap: 20px;
  padding: 20px;
  background-color: #1a0d0d;
  align-items: stretch;
  justify-content: space-between;
}

.contact-info {
  flex: 1;
  min-width: 0;
  background-color: #ebdbdb;
  overflow: hidden;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
}

.contact-details {
  flex: 1;
  width: 100%;
  background-color: #290505;
  border-radius: 0 0 10px 10px;
  padding: 15px;
  text-align: left;
}

.contact-details h2 {
  font-size: 24px;
  color: #facd06;
  margin-bottom: 10px;
}

.contact-details p {
  font-size: 16px;
  color: #fff;
  line-height: 1.5;
}

.contact-img {
  width: 100%;
  overflow: hidden;
}

.contact-img img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.content {
  flex: 2;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px;
  background-color: #290505;
  border-radius: 10px;
}

.content h2 {
  font-size: 28px;
  color: #facd06;
  margin-bottom: 10px;
}

.content p {
  color: #fff;
}

.content img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

/* ============ 页脚 ============ */
.ft-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 30px 20px;
  text-align: center;
  color: #fff;
}

/* ============ 弹窗 ============ */
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 800px;
  padding: 30px 20px;
  border-radius: 10px;
  text-align: center;
  color: #f5dd04;
  font-size: 20px;
  background-color: rgba(29, 31, 27, 0.95);
  z-index: 999;
  display: none;
}

.modal p {
  margin: 5px 0;
}

.close-btn {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #facd06;
  color: #020202;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============ 内页小横幅 ============ */
.page-hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 60px 20px;
  text-align: center;
  background: linear-gradient(135deg, #290505 0%, #1a0d0d 100%);
  border-bottom: 2px solid #facd06;
}

.page-hero h1 {
  font-size: 36px;
  color: #facd06;
  margin-bottom: 10px;
}

.page-hero p {
  font-size: 16px;
  color: #ccc;
}

/* ============ 关于我们 ============ */
.about-section {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px;
}

.about-block {
  margin-bottom: 40px;
}

.about-block h2 {
  font-size: 26px;
  color: #facd06;
  margin-bottom: 15px;
  padding-left: 12px;
  border-left: 4px solid #facd06;
}

.about-block p {
  color: #ddd;
  line-height: 1.8;
  margin-bottom: 10px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.feature-card {
  background-color: #290505;
  border-radius: 10px;
  padding: 25px 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(250, 205, 6, 0.15);
}

.feature-card .icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.feature-card h3 {
  font-size: 18px;
  color: #facd06;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: #bbb;
}

/* ============ 表单页(注册/登录) ============ */
.form-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  justify-content: center;
}

.form-card {
  width: 100%;
  max-width: 460px;
  background-color: #290505;
  border: 1px solid rgba(250, 205, 6, 0.3);
  border-radius: 12px;
  padding: 35px 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.form-card h1 {
  font-size: 26px;
  color: #facd06;
  text-align: center;
  margin-bottom: 25px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: #facd06;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 11px 14px;
  background-color: #1a0d0d;
  border: 1px solid rgba(250, 205, 6, 0.3);
  border-radius: 6px;
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus {
  border-color: #facd06;
  box-shadow: 0 0 0 3px rgba(250, 205, 6, 0.15);
}

.form-group input::placeholder {
  color: #666;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group {
  flex: 1;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 14px;
  color: #ccc;
}

.form-check input {
  width: auto;
  margin: 0;
}

.form-check a {
  color: #facd06;
  margin-left: auto;
}

.btn-submit {
  width: 100%;
  padding: 12px;
  background-color: #facd06;
  color: #020202;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-submit:hover {
  background-color: #e6b800;
  transform: translateY(-1px);
}

.form-footer {
  margin-top: 18px;
  text-align: center;
  font-size: 14px;
  color: #999;
}

.form-footer a {
  color: #facd06;
  text-decoration: none;
}

.form-tip {
  margin-top: 15px;
  padding: 10px 14px;
  background-color: rgba(250, 205, 6, 0.08);
  border-left: 3px solid #facd06;
  border-radius: 4px;
  font-size: 13px;
  color: #ccc;
  line-height: 1.6;
}

/* 验证码行 */
.captcha-row {
  display: flex;
  gap: 10px;
}

.captcha-row input {
  flex: 1;
}

.captcha-box {
  width: 110px;
  min-width: 110px;
  height: 46px;
  background: linear-gradient(135deg, #1a0d0d, #290505);
  border: 1px solid rgba(250, 205, 6, 0.3);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: bold;
  font-style: italic;
  letter-spacing: 4px;
  color: #facd06;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.3s ease;
}

.captcha-box:hover {
  border-color: #facd06;
}

/* ============ 表单提交成功状态 ============ */
.success-state {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.success-state.show {
  display: block;
}

.success-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background-color: rgba(250, 205, 6, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: #facd06;
}

.success-state h2 {
  font-size: 22px;
  color: #facd06;
  margin-bottom: 12px;
}

.success-state p {
  color: #ccc;
  line-height: 1.7;
  margin-bottom: 8px;
  font-size: 15px;
}

.success-actions {
  margin-top: 25px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-outline {
  padding: 10px 24px;
  background-color: transparent;
  border: 1px solid #facd06;
  color: #facd06;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-outline:hover {
  background-color: #facd06;
  color: #020202;
}

/* ============ 响应式 ============ */

/* 平板及以下：导航折叠、主内容纵向堆叠 */
@media screen and (max-width: 768px) {
  .header {
    padding: 10px 15px;
    min-height: auto;
  }

  .company-name {
    font-size: 20px;
  }

  .logo img {
    width: 50px;
    height: 50px;
  }

  /* 导航默认隐藏，点按钮展开 */
  .nav {
    display: none;
  }

  .nav.nav-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
  }

  .nav-list li {
    padding: 14px 20px;
    text-align: center;
    border-bottom: 1px solid rgba(250, 205, 6, 0.15);
  }

  /* 横幅去掉背景图，文字块平铺 */
  .bar {
    min-height: auto;
    background: none;
    padding: 15px;
  }

  .text {
    position: static;
    width: 100%;
    max-width: 100%;
    padding: 25px 20px;
    background-color: rgba(0, 0, 0, 0.5);
  }

  .text h1 {
    font-size: 28px;
  }

  .text p {
    font-size: 16px;
  }

  /* 主内容纵向堆叠 */
  .main-content {
    flex-direction: column;
    padding: 15px;
    gap: 15px;
  }

  .contact-info,
  .content {
    flex: none;
    width: 100%;
  }

  .modal {
    font-size: 18px;
    padding: 25px 15px;
  }

  .page-hero {
    padding: 40px 15px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .form-card {
    padding: 25px 20px;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
}

/* 手机 */
@media screen and (max-width: 480px) {
  .company-name {
    font-size: 18px;
  }

  .logo img {
    width: 44px;
    height: 44px;
  }

  .nav-toggle {
    font-size: 14px;
    padding: 8px 12px;
  }

  .text h1 {
    font-size: 24px;
  }

  .content h2,
  .contact-details h2 {
    font-size: 22px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}