/* 银钏包装 - 官网样式 */
/* 设计方向：通透 · 高级 · 呼吸感 */

/* ===== 品牌色（提取自 Logo）===== */
:root {
  --navy: #1d344d;
  --navy-soft: #2e4a66;
  --wine: #791c29;
  --wine-soft: #a03040;
  --sky: #6dc4e3;
  --sky-soft: #b0e0f0;

  --text: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;

  --bg: #faf8f5;
  --bg-warm: #f5f0eb;
  --white: #ffffff;
  --border: #e8e4df;
  --border-light: #f0ece7;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow: 0 4px 20px rgba(29,52,77,0.06);
  --shadow-lg: 0 8px 30px rgba(29,52,77,0.08);
}

/* ===== 头部 ===== */
.site-header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  max-width: 1200px;
  width: 95%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}

.header-left .logo-link {
  display: block;
}

.header-left .logo-link img {
  max-height: 88px;
  height: auto;
  display: block;
}

/* 导航 */
.header-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-nav ul li a {
  display: block;
  padding: 10px 22px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.5px;
  border-radius: 100px;
  transition: all 0.25s ease;
}

.header-nav ul li a:hover {
  color: var(--navy);
  background: var(--bg-warm);
}

.header-nav ul li.active a {
  color: var(--white);
  background: var(--navy);
}

/* 右侧电话 */
.header-right {
  display: flex;
  align-items: center;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 100px;
  background: linear-gradient(135deg, #f8f4f0 0%, #fdfaf7 100%);
  border: 1px solid var(--border);
}

.header-phone i {
  font-size: 22px;
  color: var(--wine);
}

.phone-info {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.phone-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.phone-num {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.5px;
}

/* 头部底部分隔线 */
.header-line {
  height: 3px;
  background: linear-gradient(90deg, var(--navy) 0%, var(--wine) 50%, var(--sky) 100%);
}

/* ===== 底部 ===== */
footer {
  background: var(--navy);
  margin-top: 60px;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--navy) 0%, var(--wine) 50%, var(--sky) 100%);
}

.foot {
  max-width: 1200px;
  width: 95%;
  margin: 0 auto;
  padding: 50px 0 30px;
}

.foot .nav {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 25px;
  margin-bottom: 25px;
}

.foot .nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.foot .nav ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  padding: 6px 16px;
  transition: all 0.25s;
  border-radius: 100px;
}

.foot .nav ul li a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.copyright {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 30px;
}

.copyright img {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.1);
}

.copyright .info {
  text-align: center;
}

.copyright .info p {
  color: rgba(255,255,255,0.45);
  font-size: 13px;
  line-height: 2.2em;
}

.copyright .info p a {
  color: rgba(255,255,255,0.45);
  transition: color 0.25s;
}

.copyright .info p a:hover {
  color: var(--sky);
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .header-inner {
    height: 70px;
  }
  .header-left .logo-link img {
    max-height: 55px;
  }
  .header-nav {
    display: none;
  }
  .header-phone {
    padding: 6px 12px;
  }
  .phone-num {
    font-size: 14px;
  }
  .phone-label {
    display: none;
  }

  .foot {
    padding: 35px 0 25px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 60px;
  }
  .header-left .logo-link img {
    max-height: 48px;
  }
  .header-phone i {
    font-size: 18px;
  }
  .phone-num {
    font-size: 13px;
  }
}