/* ===== 登录系统 ===== */
.auth-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-btn {
    padding: 0.5rem 1rem;
    background: rgba(201, 162, 39, 0.2);
    border: 1px solid var(--antique-gold);
    border-radius: 20px;
    color: var(--antique-gold);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}
.auth-btn:hover {
    background: rgba(201, 162, 39, 0.4);
    transform: scale(1.05);
}

.username-display {
    color: var(--antique-gold);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===== 登录弹窗 ===== */
.auth-modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}
.auth-modal.show { display: flex; }

.auth-modal-content {
    background: var(--deep-indigo);
    padding: 2rem;
    border-radius: 20px;
    border: 2px solid var(--antique-gold);
    max-width: 380px;
    width: 90%;
    position: relative;
}

.auth-close {
    position: absolute;
    top: 10px; right: 15px;
    background: none;
    border: none;
    color: var(--antique-gold);
    font-size: 1.5rem;
    cursor: pointer;
}

.auth-form h3 {
    color: var(--antique-gold);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.auth-form input {
    width: 100%;
    padding: 0.8rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--antique-gold);
    border-radius: 10px;
    background: rgba(26, 26, 46, 0.5);
    color: var(--cream);
    font-size: 0.95rem;
}
.auth-form input::placeholder { color: rgba(245, 245, 220, 0.5); }

.auth-submit-btn {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(135deg, var(--nailong-yellow) 0%, var(--antique-gold) 100%);
    border: none;
    border-radius: 10px;
    color: var(--deep-indigo);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}
.auth-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 217, 61, 0.3);
}

.auth-error, .auth-success {
    text-align: center;
    margin-bottom: 1rem;
    min-height: 1.2rem;
    font-size: 0.9rem;
}
.auth-error { color: #FFB6C1; }
.auth-success { color: #90EE90; }

.auth-form .divider {
    text-align: center;
    margin: 1rem 0;
    color: rgba(245, 245, 220, 0.5);
    position: relative;
}
.auth-form .divider::before,
.auth-form .divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 35%; height: 1px;
    background: rgba(201, 162, 39, 0.3);
}
.auth-form .divider::before { left: 0; }
.auth-form .divider::after { right: 0; }

.wechat-btn {
    width: 100%;
    padding: 0.7rem;
    background: #07C160;
    border: none;
    border-radius: 10px;
    color: white;
    cursor: not-allowed;
    opacity: 0.6;
    font-size: 0.9rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1rem;
    color: rgba(245, 245, 220, 0.8);
    font-size: 0.9rem;
}
.auth-switch a {
    color: var(--antique-gold);
    text-decoration: none;
    font-weight: 600;
}