/* common.css - 公共样式（顶部栏、头部、搜索框、导航、底部、移动端菜单等） */
:root {
    --primary: #d4380d;
    --primary-dark: #b32d0a;
    --primary-light: #fff2ef;
    --secondary: #ff7a45;
    --accent: #ffc53d;
    --bg: #fff5f0;
    --white: #ffffff;
    --text: #2c2c2c;
    --text-light: #666666;
    --text-lighter: #999999;
    --border: #f0e0d8;
    --red: #e6421e;
    --gold: #ffc107;
    --radius: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: all 0.2s ease; }

/* 顶部栏 */
.top-bar { background: var(--primary-light); padding: 6px 12px; font-size: 11px; display: flex; justify-content: space-between; border-bottom: 1px solid var(--border); }
.top-bar a { margin: 0 6px; color: var(--text-light); }
.top-bar a:hover { color: var(--primary); }

/* 头部 */
.header-main { background: var(--white); padding: 10px 12px; border-bottom: 2px solid var(--primary); }
.logo-area { display: flex; align-items: center; gap: 8px; }
.logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; }
.logo-text h1 { font-size: 16px; font-weight: 700; color: var(--primary); }
.logo-text p { font-size: 9px; color: var(--text-lighter); }

/* 搜索框 */
.search-box { background: var(--white); border-radius: 30px; margin: 10px 12px; display: flex; align-items: center; padding: 5px 12px; border: 1px solid var(--border); }
.search-box i { color: var(--text-lighter); margin-right: 6px; font-size: 12px; }
.search-box input { flex: 1; border: none; background: transparent; font-size: 13px; outline: none; }
.search-box button { background: var(--primary); color: #fff; border: none; padding: 6px 16px; border-radius: 25px; font-size: 12px; cursor: pointer; transition: background 0.2s; }
.search-box button:hover { background: var(--primary-dark); }

/* 导航菜单 */
.main-nav { background: var(--white); overflow-x: auto; white-space: nowrap; padding: 6px 12px; border-bottom: 1px solid var(--border); }
.main-nav::-webkit-scrollbar { display: none; }
.main-nav a { color: var(--text); padding: 6px 12px; font-size: 13px; display: inline-block; border-radius: 20px; margin: 0 2px; }
.main-nav a i { margin-right: 5px; font-size: 12px; }
.main-nav a:hover { background: var(--primary-light); color: var(--primary); }
.main-nav a.active { background: var(--primary); color: #fff; }

/* 面包屑 */
.breadcrumb { background: var(--white); padding: 8px 12px; margin: 10px 12px; border-radius: var(--radius); font-size: 11px; }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .separator { margin: 0 5px; color: var(--border); }

/* 底部 */
.site-footer { background: #1a1a2e; color: #aaa; margin-top: 30px; padding: 25px 12px 15px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; justify-content: center; }
.footer-links a { font-size: 11px; color: #aaa; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { text-align: center; font-size: 10px; padding-top: 12px; border-top: 1px solid #333; }

/* 返回顶部按钮 */
.back-to-top { position: fixed; bottom: 20px; right: 20px; width: 40px; height: 40px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; cursor: pointer; opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 999; box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* 移动端菜单 */
.mobile-sidebar { position: fixed; top: 0; left: -260px; width: 260px; height: 100%; background: var(--white); z-index: 1003; transition: left 0.3s ease; overflow-y: auto; box-shadow: 2px 0 10px rgba(0,0,0,0.1); }
.mobile-sidebar.open { left: 0; }
.mobile-sidebar-header { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 20px 15px; color: #fff; position: relative; }
.mobile-menu-close { position: absolute; top: 15px; right: 15px; width: 28px; height: 28px; background: rgba(255,255,255,0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.mobile-menu-close:hover { background: rgba(255,255,255,0.3); }
.mobile-menu-list { list-style: none; padding: 0; margin: 0; }
.mobile-menu-item { border-bottom: 1px solid var(--border); }
.mobile-menu-link { display: flex; align-items: center; gap: 10px; padding: 12px 15px; color: var(--text); font-size: 13px; }
.mobile-menu-link:hover { background: var(--primary-light); color: var(--primary); }
.mobile-menu-link i:first-child { width: 24px; color: var(--primary); font-size: 14px; }
.overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1002; opacity: 0; visibility: hidden; transition: all 0.3s; }
.overlay.active { opacity: 1; visibility: visible; }
.menu-toggle { width: 36px; height: 36px; background: var(--primary-light); border-radius: 8px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer; }
.menu-toggle span { width: 18px; height: 2px; background: var(--primary); border-radius: 2px; transition: all 0.3s; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-search-icon { width: 36px; height: 36px; background: var(--primary-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; cursor: pointer; margin-left: auto; margin-right: 8px; }
.mobile-search-icon i { color: var(--primary); font-size: 16px; }
.mobile-search-icon:hover { background: var(--primary); }
.mobile-search-icon:hover i { color: #fff; }
.mobile-search-box { position: fixed; top: 0; left: 0; right: 0; background: var(--white); z-index: 1004; padding: 12px 15px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); border-bottom: 2px solid var(--primary); animation: slideDown 0.3s ease; display: none; }
.mobile-search-form { display: flex; align-items: center; gap: 10px; background: var(--primary-light); border-radius: 30px; padding: 4px 15px; }
.mobile-search-form input { flex: 1; border: none; background: transparent; padding: 8px 0; font-size: 13px; outline: none; }
.mobile-search-form button { background: var(--primary); color: #fff; border: none; padding: 6px 16px; border-radius: 25px; cursor: pointer; font-size: 12px; }
.mobile-search-close { color: var(--text-lighter); font-size: 18px; cursor: pointer; padding: 5px; }

.mobile-header { display: none; background: var(--white); padding: 10px 12px; border-bottom: 1px solid var(--border); align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 1002; }
.mobile-logo { display: flex; align-items: center; gap: 8px; }
.mobile-logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; }
.mobile-logo-text h2 { font-size: 14px; font-weight: 700; color: var(--primary); }
.mobile-logo-text p { font-size: 9px; color: var(--text-lighter); }

/* 响应式 */
@media (max-width: 768px) {
    .top-bar, .header-main, .main-nav { display: none; }
    .mobile-header { display: flex; }
}

/* 动画 */
@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.3s ease; }