/* ========== 朋盼外卖 - 公共样式 ========== */

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

/* CSS Variables */
:root{
    --brand:#FFC300;
    --brand-light:#FFF8E1;
    --text-primary:#1F2937;
    --text-secondary:#4B5563;
    --text-light:#9CA3AF;
    --white:#FFFFFF;
    --border:#E5E7EB;
    --bg:#F8F9FB;
    --radius:10px;
    --radius-lg:16px;
    --transition:0.25s cubic-bezier(0.4,0,0.2,1);
}

/* Body */
body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
    background:var(--bg);
    color:var(--text-primary);
    line-height:1.8;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}

/* ========== 导航栏 ========== */
.top-navbar{width:100%;height:48px;background:#1D1D1D;position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(255,255,255,0.08)}
.top-navbar .container-wide{max-width:1440px;height:100%;margin:0 auto;padding:0 32px;display:flex;justify-content:space-between;align-items:center}
.nav-left,.nav-right{display:flex;align-items:center;gap:32px}
.nav-badge{background:rgba(255,195,0,0.15);color:var(--brand);font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px;letter-spacing:0.5px}
.nav-phone{color:var(--brand);font-weight:600;font-size:14px;display:flex;align-items:center;gap:6px}
.nav-phone::before{content:"📞";font-size:12px}
.top-navbar a{color:#D1D5DB;text-decoration:none;font-size:13px;transition:color var(--transition);position:relative}
.top-navbar a:hover{color:var(--white)}
.top-navbar a::after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--brand);border-radius:1px;transition:width var(--transition)}
.top-navbar a:hover::after{width:100%}
.nav-divider{width:1px;height:16px;background:rgba(255,255,255,0.15)}
.admin-dropdown{position:relative}
.admin-dropdown-btn{color:var(--brand);font-size:13px;font-weight:600;background:rgba(255,195,0,0.1);border:1px solid rgba(255,195,0,0.25);border-radius:6px;padding:5px 12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all var(--transition)}
.admin-dropdown-btn:hover{background:rgba(255,195,0,0.2);border-color:rgba(255,195,0,0.4)}
.admin-dropdown-btn::after{content:"";width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid var(--brand);transition:transform var(--transition)}
.admin-dropdown.open .admin-dropdown-btn::after{transform:rotate(180deg)}
.admin-dropdown-menu{position:absolute;top:calc(100%+8px);right:0;background:#252525;border:1px solid rgba(255,255,255,0.12);border-radius:8px;padding:6px;min-width:160px;box-shadow:0 8px 28px rgba(0,0,0,0.5);opacity:0;pointer-events:none;transform:translateY(-4px);transition:all 0.2s ease;z-index:200}
.admin-dropdown.open .admin-dropdown-menu{opacity:1;pointer-events:auto;transform:translateY(0)}
.admin-dropdown-menu a{display:flex;align-items:center;gap:6px;padding:8px 12px;color:#D1D5DB!important;font-size:13px;border-radius:6px;text-decoration:none;white-space:nowrap;transition:all 0.2s}
.admin-dropdown-menu a:hover{background:rgba(255,195,0,0.15);color:var(--brand)!important}
.admin-dropdown-menu a::after{display:none}
.mobile-admin-only{display:none}

/* ========== 页脚 ========== */
.site-footer{background:#181818;color:#9CA3AF;padding:48px 0 32px;font-size:14px}
.site-footer .container-wide{max-width:1440px;margin:0 auto;padding:0 32px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand h3{color:var(--white);font-size:22px;margin-bottom:12px}
.footer-brand p{line-height:1.7}
.footer-col h4{color:var(--white);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:#9CA3AF;text-decoration:none;margin-bottom:10px;transition:color var(--transition)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid #1F2937;padding-top:24px;display:flex;flex-direction:column;align-items:center;gap:10px}
.footer-bottom-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:center}
.footer-bottom-row .sep{color:#3A3A3A;margin:0 4px}

/* ========== 回到顶部按钮 ========== */
.back-to-top{position:fixed;bottom:28px;right:24px;width:44px;height:44px;background:var(--brand);color:#1D1D1D;border:none;border-radius:50%;font-size:18px;cursor:pointer;z-index:998;box-shadow:0 4px 16px rgba(255,195,0,0.4);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transform:translateY(20px);transition:all 0.3s ease}
.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-to-top:hover{background:#FFD633;transform:translateY(-2px);box-shadow:0 6px 24px rgba(255,195,0,0.55)}

/* ========== 响应式 - 导航栏 ========== */
@media (max-width:768px){
    .top-navbar .container-wide{padding:0 16px}
    .nav-left{gap:8px}
    .nav-right{display:flex;gap:8px}
    .nav-right>*{display:none}
    .nav-right>.mobile-admin-only{display:block}
    .nav-left .admin-dropdown-btn{font-size:12px;padding:4px 8px}
    .nav-badge{display:none}
}

/* ========== 响应式 - 页脚 & 回到顶部 ========== */
@media (max-width:1200px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
    .footer-brand{grid-column:1/-1}
    .site-footer .container-wide{padding:0 16px}
    .footer-bottom-row{font-size:12px;gap:8px}
    .back-to-top{bottom:24px;right:20px}
}