/* ===== MK体育在线官网 - 全站公共样式 common.css ===== */
/* 配色: 香槟金系列 主色#F7E7CE 辅色#C8A96B 深色背景#1C1C1C */

/* ---- CSS Reset & Base ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Courier New", "Consolas", "Monaco", "Lucida Console", monospace;
  font-size: 14px;
  line-height: 1.7;
  color: #333333;
  background-color: #FFFFFF;
  word-wrap: break-word;
}

a {
  color: #C8A96B;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #1C1C1C;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: #1C1C1C;
}

h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }

p {
  margin-bottom: 0;
  text-align: justify;
}

ul, ol {
  list-style: none;
}

/* ---- Layout Container ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* ---- N1 通栏白底导航栏 ---- */
.header {
  width: 100%;
  background-color: #FFFFFF;
  border-bottom: 2px solid #F7E7CE;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

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

.logo svg {
  width: 40px;
  height: 40px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #1C1C1C;
  letter-spacing: 2px;
}

.logo-sub {
  font-size: 11px;
  color: #C8A96B;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ---- Navigation ---- */
.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 600;
  color: #1C1C1C;
  line-height: 70px;
  letter-spacing: 1px;
  border-bottom: 3px solid transparent;
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #C8A96B;
  border-bottom-color: #C8A96B;
}

/* ---- B2 直角切割按钮 ---- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-align: center;
  cursor: pointer;
  border: none;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: all 0.25s ease;
}

.btn-primary {
  background-color: #C8A96B;
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: #1C1C1C;
  color: #F7E7CE;
}

.btn-outline {
  background-color: transparent;
  color: #C8A96B;
  border: 2px solid #C8A96B;
  padding: 10px 30px;
}

.btn-outline:hover {
  background-color: #C8A96B;
  color: #FFFFFF;
}

.btn-dark {
  background-color: #1C1C1C;
  color: #F7E7CE;
}

.btn-dark:hover {
  background-color: #C8A96B;
  color: #FFFFFF;
}

/* ---- Footer ---- */
.footer {
  background-color: #1C1C1C;
  color: #999999;
  padding: 40px 0 20px;
  font-size: 13px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-bottom {
  border-top: 1px solid #333333;
  margin-top: 30px;
  padding-top: 20px;
  text-align: center;
  color: #666666;
  font-size: 12px;
}

.footer-bottom a {
  color: #C8A96B;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  background-color: #FAFAFA;
  border-bottom: 1px solid #F0F0F0;
  padding: 12px 0;
  font-size: 13px;
}

.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.breadcrumb a {
  color: #666666;
}

.breadcrumb a:hover {
  color: #C8A96B;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: #CCCCCC;
}

.breadcrumb-current {
  color: #C8A96B;
}

/* ---- Section Title ---- */
.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 28px;
  color: #1C1C1C;
  margin-bottom: 12px;
  letter-spacing: 3px;
}

.section-title .subtitle {
  font-size: 14px;
  color: #C8A96B;
  letter-spacing: 2px;
}

.section-title .line {
  width: 60px;
  height: 3px;
  background-color: #C8A96B;
  margin: 15px auto 0;
}

/* ---- Utility Classes ---- */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.pt-40 { padding-top: 40px; }
.pt-60 { padding-top: 60px; }
.pb-40 { padding-bottom: 40px; }
.pb-60 { padding-bottom: 60px; }

/* ---- Mobile Menu Toggle ---- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: #1C1C1C;
  transition: all 0.3s ease;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .header-inner {
    height: 60px;
  }
  .nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    border-bottom: 2px solid #F7E7CE;
    flex-direction: column;
    padding: 10px 0;
  }
  .nav.active {
    display: flex;
  }
  .nav-link {
    line-height: 48px;
    padding: 0 20px;
    border-bottom: 1px solid #F5F5F5;
  }
  .menu-toggle {
    display: flex;
  }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
  h3 { font-size: 16px; }
  .container {
    padding: 0 15px;
  }
  .btn {
    padding: 10px 24px;
    font-size: 13px;
  }
}