/* ============================================
   材料够老站 UI 现代化覆盖样式
   加载顺序：layui.css → public.css → yeui.css → modern.css（本文件，优先级最高）
   不修改任何现有文件，出问题删掉 head.html 里的引入即可回滚
   ============================================ */

/* ===== 1. 全局配色体系 ===== */
:root {
  --primary: #F4A928;        /* 品牌橙金（与logo一致） */
  --primary-dark: #d9931e;   /* 深橙金 */
  --primary-light: #f7bc54;  /* 浅橙金 */
  --text-primary: #333;      /* 主文字 */
  --text-secondary: #666;    /* 次要文字 */
  --text-muted: #999;        /* 弱化文字 */
  --bg-page: #f5f5f5;        /* 页面背景 */
  --bg-card: #fff;           /* 卡片背景 */
  --border: #e8e8e8;         /* 边框色 */
  --radius: 8px;             /* 圆角 */
  --radius-lg: 12px;         /* 大圆角 */
  --shadow: 0 2px 8px rgba(0,0,0,0.06);           /* 轻阴影 */
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);     /* hover阴影 */
  --transition: all 0.25s ease;                     /* 过渡动画 */
}

/* ===== 2. 全局基础 ===== */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-page);
}

/* ===== 3. 导航栏（京东风格：白色背景 + 品牌色点缀） ===== */
.fly-header {
  background: #fff !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border-bottom: 1px solid #e8e8e8;
  padding: 0 !important;
}

.fly-header .layui-nav {
  height: 52px !important;
  line-height: 52px !important;
  background: transparent !important;
}

.fly-header .layui-nav .layui-nav-item a {
  color: #333 !important;
  font-size: 15px;
  font-weight: 500;
  padding: 0 22px !important;
  transition: var(--transition);
  position: relative;
}

.fly-header .layui-nav .layui-nav-item a:hover {
  color: var(--primary) !important;
}

/* 当前页/悬停：底部金色细线（京东风格） */
.fly-header .layui-nav .layui-nav-item a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px 2px 0 0;
  transition: var(--transition);
  transform: translateX(-50%);
}

.fly-header .layui-nav .layui-nav-item a:hover::after,
.fly-header .layui-nav .layui-this a::after {
  width: 70%;
}

/* 当前页文字加粗 + 金色 */
.fly-header .layui-nav .layui-this a {
  color: var(--primary) !important;
  font-weight: 600 !important;
}

/* 导航栏右侧用户区 */
.fly-header .fly-nav-user .layui-nav-item > a {
  color: #333 !important;
  font-size: 14px;
}

.fly-header .fly-nav-user .layui-nav-child {
  background: #fff !important;
  border: 1px solid #e8e8e8 !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-hover) !important;
  top: 52px !important;
}

.fly-header .fly-nav-user .layui-nav-child dd a {
  color: #333 !important;
  font-size: 14px;
  padding: 10px 16px !important;
}

.fly-header .fly-nav-user .layui-nav-child dd a:hover {
  background: #FFF8EC !important;
  color: var(--primary) !important;
}

/* 顶部搜索区（京东风格：简洁白底） */
.top-header {
  background: #fff !important;
  padding: 16px 0 !important;
  border-bottom: 1px solid #f0f0f0;
}

.top-header .topSearch {
  background: var(--primary) !important;
  border-radius: 0 var(--radius) var(--radius) 0 !important;
  height: 40px !important;
  line-height: 40px !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  transition: var(--transition);
  box-shadow: 0 2px 6px rgba(244,169,40,0.25) !important;
}

.top-header .topSearch:hover {
  background: var(--primary-dark) !important;
  box-shadow: 0 4px 12px rgba(244,169,40,0.35) !important;
}

.top-header .keyword {
  height: 40px !important;
  line-height: 40px !important;
  border: 2px solid var(--primary) !important;
  border-right: none !important;
  border-radius: var(--radius) 0 0 var(--radius) !important;
  padding: 0 16px !important;
  font-size: 14px !important;
  transition: var(--transition);
  color: #333 !important;
}

.top-header .keyword:focus {
  box-shadow: 0 0 0 3px rgba(244,169,40,0.15) !important;
}

/* 热门搜索标签 */
.top-header .hot-search a,
.top-header p a {
  color: #666 !important;
  font-size: 13px;
  transition: var(--transition);
}

.top-header .hot-search a:hover,
.top-header p a:hover {
  color: var(--primary) !important;
  text-decoration: none;
}

/* 热门搜索标题 */
.top-header p span[style*="color: red"] {
  color: var(--primary) !important;
  font-weight: 500;
}

/* ===== 4. 按钮统一（京东风格：金色为主，圆角，阴影） ===== */
.layui-btn,
.btn1,
.join-btn,
.layui-btn-fluid {
  background: var(--primary) !important;
  color: #fff !important;
  border: none !important;
  border-radius: 6px !important;
  height: 40px !important;
  line-height: 40px !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  transition: var(--transition) !important;
  box-shadow: 0 2px 6px rgba(244,169,40,0.25) !important;
}

.layui-btn:hover,
.btn1:hover,
.join-btn:hover,
.layui-btn-fluid:hover {
  background: var(--primary-dark) !important;
  box-shadow: 0 4px 12px rgba(244,169,40,0.35) !important;
  transform: translateY(-1px);
}

/* 搜索按钮 */
.search-box .search-btn,
.topSearch {
  background: var(--primary) !important;
  border-radius: 0 6px 6px 0 !important;
}

/* ===== 5. 卡片/面板 ===== */
.fly-panel {
  border-radius: var(--radius-lg) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  transition: var(--transition);
}

.fly-panel:hover {
  box-shadow: var(--shadow-hover) !important;
}

/* ===== 6. 首页模块 ===== */
/* 今日最新 */
.index .list-box {
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* 热门专题/精品推荐卡片 */
.hot-cate .hot-item,
.top-cate .hot-item {
  border-radius: var(--radius) !important;
  transition: var(--transition);
  border: 1px solid var(--border) !important;
}

.hot-cate .hot-item:hover,
.top-cate .hot-item:hover {
  box-shadow: var(--shadow-hover) !important;
  transform: translateY(-2px);
}

.hot-cate .hot-item img,
.top-cate .hot-item img {
  border-radius: var(--radius) var(--radius) 0 0 !important;
}

/* 模块标题（热门专题/精品推荐等） */
.new1 .text-centter,
.new2 .text-centter {
  color: var(--primary) !important;
  font-size: 18px !important;
  font-weight: 600 !important;
}

.new1 .text-centter i,
.new2 .text-centter i {
  color: var(--primary) !important;
}

/* ===== 7. 文章列表 ===== */
.index .list-item {
  border-radius: var(--radius) !important;
  border: 1px solid var(--border) !important;
  margin-bottom: 12px !important;
  transition: var(--transition);
  background: #fff !important;
}

.index .list-item:hover {
  box-shadow: var(--shadow-hover) !important;
  transform: translateY(-1px);
}

.index .list-item .item-title {
  font-size: 16px !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
}

.index .list-item .item-title a {
  color: var(--text-primary) !important;
  transition: var(--transition);
}

.index .list-item .item-title a:hover {
  color: var(--primary) !important;
}

.index .list-item .item-desc {
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  line-height: 1.6 !important;
}

.index .list-item .item-right {
  border-left: none !important;
  padding-left: 16px !important;
}

/* 价格标签 */
.price {
  color: var(--primary) !important;
  font-weight: 600 !important;
}

/* ===== 8. 登录页（login.html 重写时配合） ===== */
.login-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 0;
}

.login-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  padding: 48px 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.login-card .logo {
  margin-bottom: 24px;
}

.login-card .logo img {
  max-width: 200px;
  height: auto;
}

.login-card .login-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-card .login-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.login-card .wx-login-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #07C160;
  color: #fff;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(7,193,96,0.3);
}

.login-card .wx-login-btn:hover {
  background: #06ad56;
  box-shadow: 0 4px 16px rgba(7,193,96,0.4);
  transform: translateY(-1px);
}

.login-card .wx-login-btn i {
  font-size: 20px;
}

/* ===== 9. VIP 页面 ===== */
.vip .layui-field-title legend {
  color: var(--primary) !important;
  font-size: 18px !important;
  font-weight: 600 !important;
}

.vip .layui-form-radio span {
  font-size: 15px !important;
}

.vip .layui-form-radio:hover span {
  color: var(--primary) !important;
}

/* 支付按钮 */
.vip .layui-btn-fluid {
  height: 48px !important;
  line-height: 48px !important;
  font-size: 16px !important;
  border-radius: var(--radius) !important;
}

/* 需支付金额 */
.vip #pay_amount {
  color: var(--primary) !important;
  font-size: 24px !important;
  font-weight: 600 !important;
}

/* ===== 10. 页脚 ===== */
.footer {
  background: #1a1a1a !important;
  padding: 40px 0 !important;
}

.footer .about a {
  color: #ccc !important;
  font-size: 14px !important;
  transition: var(--transition);
}

.footer .about a:hover {
  color: var(--primary-light) !important;
}

/* ===== 11. 分页 ===== */
.page .pagination li a {
  border-radius: var(--radius) !important;
  margin-right: 6px !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  transition: var(--transition);
}

.page .pagination li a:hover {
  border-color: var(--primary) !important;
  color: var(--primary) !important;
}

.page .pagination .active span,
.page .pagination .active {
  background: var(--primary) !important;
  color: #fff !important;
  border-radius: var(--radius) !important;
}

/* ===== 12. 面包屑 ===== */
.mianbao .layui-breadcrumb a {
  color: var(--text-secondary) !important;
  font-size: 13px;
  transition: var(--transition);
}

.mianbao .layui-breadcrumb a:hover {
  color: var(--primary) !important;
}

/* ===== 13. 表单元素 ===== */
.layui-input,
.layui-select,
.layui-textarea {
  border-radius: var(--radius) !important;
  border: 1px solid var(--border) !important;
  transition: var(--transition) !important;
}

.layui-input:focus,
.layui-select:focus,
.layui-textarea:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(201,169,110,0.15) !important;
}

/* ===== 14. 弹窗（layer） ===== */
.layui-layer {
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.16) !important;
}

.layui-layer-title {
  background: #fff !important;
  color: var(--text-primary) !important;
  border-bottom: 1px solid var(--border) !important;
  font-size: 16px !important;
  font-weight: 600 !important;
}

.layui-layer-btn a {
  border-radius: var(--radius) !important;
}

.layui-layer-btn .layui-layer-btn0 {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
}

/* ===== 15. 回到顶部/悬浮按钮 ===== */
#main-ai-entry,
#ai-write-entry {
  box-shadow: var(--shadow-hover) !important;
  transition: var(--transition) !important;
}

/* ===== 16. 响应式微调 ===== */
@media (max-width: 768px) {
  .top-header .keyword { font-size: 13px !important; }
  .login-card { padding: 32px 24px; margin: 0 16px; }
  .fly-header .layui-nav .layui-nav-item a { padding: 0 12px !important; font-size: 14px; }
}