/* ===== 公共顶部导航（index/encourage/tools/mini-promo 共用） ===== */

/* 容器 */
.nav{display:flex;align-items:center;justify-content:space-between;padding:24px 48px;position:relative;z-index:2}

/* 品牌区 */
.brand{display:flex;align-items:center;gap:12px;color:#eaf2ff}
.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#ff7a3a 0%,#ff4d8a 45%,#7d5bff 100%);display:grid;place-items:center;box-shadow:0 12px 40px -10px rgba(255,122,58,.6),inset 0 1px 0 rgba(255,255,255,.4);color:#fff}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text .name{font-size:17px;font-weight:600;letter-spacing:.04em;color:#eaf2ff}
.brand-text .sub{font-size:12px;color:rgba(234,242,255,.45);letter-spacing:.18em;margin-top:3px}

/* 右侧容器 */
.nav-right{display:flex;align-items:center;gap:10px}
.nav-actions{display:flex;align-items:center;gap:10px}

/* 返回首页按钮 */
.nav-back{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:rgba(234,242,255,.85);font-size:13px;font-weight:600;text-decoration:none;transition:background .2s,color .2s,transform .2s,border-color .2s}
.nav-back:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.22);transform:translateY(-1px)}
.nav-back svg{width:14px;height:14px}

/* 文字链接 */
.nav-link{font-size:14px;color:rgba(234,242,255,.75);padding:9px 18px;border-radius:999px;transition:.2s}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#fff;background:rgba(255,255,255,.1);font-weight:600}

/* CTA 按钮 */
.nav-cta{font-size:14px;padding:10px 22px;border-radius:999px;background:linear-gradient(135deg,#ff7a3a 0%,#ff4d8a 100%);color:#fff;font-weight:500;letter-spacing:.04em;box-shadow:0 10px 30px -8px rgba(255,77,138,.55);transition:.25s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 14px 36px -8px rgba(255,77,138,.7)}

/* 用户胶囊（由 navActions JS 注入） */
.user-pill{position:relative;display:flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(20px);cursor:pointer;transition:.2s}
.user-pill:hover{background:rgba(255,255,255,.1)}
.user-pill .avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#7d5bff);display:grid;place-items:center;font-size:13px;font-weight:600;color:#fff}
.user-pill .nick{font-size:13px;color:rgba(234,242,255,.85);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-pill .chev{width:14px;height:14px;color:rgba(234,242,255,.5);transition:.2s}
.user-pill.open .chev{transform:rotate(180deg)}
.user-menu{position:absolute;top:calc(100% + 10px);right:0;min-width:180px;padding:8px;border-radius:18px;background:rgba(20,20,40,.85);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(28px);box-shadow:0 30px 80px -20px rgba(0,0,0,.6);display:none;z-index:99}
.user-menu.show{display:block}
.user-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:12px;font-size:13px;color:rgba(234,242,255,.85);transition:.15s}
.user-menu a:hover{background:rgba(255,255,255,.06);color:#fff}
.user-menu a svg{width:16px;height:16px;opacity:.7}
.user-menu .div{height:1px;background:rgba(255,255,255,.08);margin:6px 4px}
.user-menu .logout{color:rgba(255,140,140,.9)}

/* ===== 会员入口 ===== */
.nav-member{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:linear-gradient(135deg,rgba(255,179,71,.12),rgba(255,122,58,.12));border:1px solid rgba(255,179,71,.25);color:#ffb347;font-size:12px;font-weight:600;cursor:pointer;transition:.25s;letter-spacing:.04em}
.nav-member:hover{background:linear-gradient(135deg,rgba(255,179,71,.2),rgba(255,122,58,.2));border-color:rgba(255,179,71,.4);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(255,179,71,.35)}
.nav-member svg{width:14px;height:14px}

.user-menu .member-item{background:linear-gradient(135deg,rgba(255,179,71,.08),rgba(255,122,58,.08));border:1px solid rgba(255,179,71,.15);color:#ffb347;margin-bottom:6px}
.user-menu .member-item:hover{background:linear-gradient(135deg,rgba(255,179,71,.15),rgba(255,122,58,.15));border-color:rgba(255,179,71,.3);color:#ffc96b}
.user-menu .member-item svg{color:#ffb347;opacity:1}

/* ===== 下拉菜单 ===== */
.nav-dropdown{position:relative;display:inline-flex}
.nav-dropdown .nav-link{padding-right:28px}
.nav-dropdown .nav-link::after{content:"";position:absolute;right:10px;top:50%;transform:translateY(-50%);width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid rgba(234,242,255,.5);transition:.2s}
.nav-dropdown:hover .nav-link::after{border-top-color:#fff}
.nav-dropdown-menu{position:absolute;top:calc(100% + 6px);left:0;min-width:150px;padding:8px;border-radius:16px;background:rgba(20,20,40,.92);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(28px);box-shadow:0 20px 60px -16px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;z-index:100}
.nav-dropdown:hover .nav-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown-menu a{display:flex;align-items:center;padding:10px 14px;border-radius:10px;font-size:13px;color:rgba(234,242,255,.75);transition:.15s;white-space:nowrap;text-decoration:none}
.nav-dropdown-menu a:hover{background:rgba(255,255,255,.08);color:#fff}

/* 二级嵌套子菜单 */
.nav-subitem{position:relative;display:flex;align-items:center;padding:10px 14px;border-radius:10px;font-size:13px;color:rgba(234,242,255,.75);transition:.15s;white-space:nowrap;cursor:pointer;justify-content:space-between;gap:8px}
.nav-subitem:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-subitem::after{content:"";width:0;height:0;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:5px solid rgba(234,242,255,.4);transition:.2s;flex-shrink:0}
.nav-subitem:hover::after{border-left-color:#fff}
.nav-submenu{position:absolute;top:-8px;left:calc(100% + 4px);min-width:120px;padding:8px;border-radius:14px;background:rgba(20,20,40,.94);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(28px);box-shadow:0 20px 60px -16px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateX(4px);transition:.15s;z-index:110}
.nav-subitem:hover .nav-submenu{opacity:1;visibility:visible;transform:translateX(0)}
.nav-submenu a{display:flex;align-items:center;padding:9px 12px;border-radius:8px;font-size:13px;color:rgba(234,242,255,.75);transition:.15s;white-space:nowrap;text-decoration:none}
.nav-submenu a:hover{background:rgba(255,255,255,.08);color:#fff}