:root{--bg:#1a0f08;--bg2:#241510;--bg3:#2e1d14;--card:#342016;--border:#4a2e1e;--text:#f5ede8;--text2:#a89080;--primary:#ff6b3d;--primary2:#ff8a42;--accent:#ffa94d;--danger:#e74c3c;--success:#2ecc71;--warning:#ffa94d;--radius:12px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:var(--primary2);text-decoration:none}
a:hover{text-decoration:underline}
input,select,textarea,button{font-family:inherit;font-size:14px}
.btn{display:inline-block;padding:10px 24px;border:none;border-radius:8px;cursor:pointer;font-size:14px;transition:all .2s;color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent))}
.btn:hover{opacity:.9;transform:translateY(-1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-secondary{background:var(--bg3)}
.btn-danger{background:var(--danger)}
.btn-block{width:100%}
.btn-lg{padding:14px 32px;font-size:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;color:var(--text2);font-size:13px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;background:var(--bg2);color:var(--text);outline:none;transition:border .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.auth-wrap{max-width:420px;margin:60px auto;padding:0 20px}
.auth-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:40px}
.auth-logo{text-align:center;margin-bottom:30px}
.auth-logo .logo-icon{width:56px;height:56px;margin:0 auto 10px;display:block}
.auth-logo h1{font-size:28px;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.auth-logo p{color:var(--text2);font-size:14px;margin-top:4px}
.error-msg{color:var(--danger);font-size:13px;margin:10px 0;min-height:20px}
.success-msg{color:var(--success);font-size:13px;margin:10px 0;min-height:20px}
.auth-link{text-align:center;margin-top:20px;color:var(--text2);font-size:13px}
.navbar{position:fixed;top:0;left:0;right:0;height:60px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;z-index:100;justify-content:space-between}
.navbar-brand{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:bold;text-decoration:none}
.navbar-brand:hover{text-decoration:none}
.navbar-brand img{width:28px;height:28px;border-radius:6px}
.navbar-brand span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.navbar-nav{display:flex;gap:24px;align-items:center}
.navbar-nav a{color:var(--text2);font-size:14px}
.navbar-nav a:hover{color:var(--text)}
.navbar-user{display:flex;align-items:center;gap:12px}
.navbar-user .credits{background:var(--bg3);padding:4px 12px;border-radius:20px;font-size:13px;color:var(--warning)}
.navbar-user .avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:bold}
.main-content{padding-top:60px;min-height:100vh}
.footer{text-align:center;padding:20px;color:var(--text2);font-size:13px;border-top:1px solid var(--border);margin-top:40px}
.footer a{margin:0 8px}
.toast{position:fixed;top:80px;right:20px;padding:12px 24px;border-radius:8px;color:#fff;z-index:1000;animation:slideIn .3s}
.toast-success{background:var(--success)}
.toast-error{background:var(--danger)}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.loading{display:inline-block;width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:200}
.modal{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px;max-width:500px;width:90%;max-height:80vh;overflow-y:auto}
.modal h2{margin-bottom:20px}
.modal-close{float:right;cursor:pointer;color:var(--text2);font-size:24px}
.modal-close:hover{color:var(--text)}